This drama tells the story of Class 300, a private school in Eto, where % students with zero motivation, zero talent, and zero future potential gathered together. They ushered in a new class teacher. He has a good appearance, but is a little weird.Teacher: Rei Kagami.The common sense in the school no longer applies. His assets and mobility are ridiculous. His true identity is that he inherited the CEO of the chaebol group that represents Japan and is an unexpected billionaire.Although times have changed, the problems of adolescent children have not changed at all.Kagami, the new hero who breaks common sense, faces various problems and grows up with the students here.​

Rei Kagami (Ryosuke Yamada) is the CEO of Japan's largest chaebol group, Kagami Group, and a billionaire.He has a genius mind and is an inventor engaged in revolutionary development. He is currently conducting research on high-precision artificial intelligence, but his true identity has not been made public.As a child, he was a curious and gentle child, but as he grew up, his self-centered personality became more obvious.Such Kagami, together with her outstanding secretary and bodyguard Ichika Serizawa (Haruka Kinami), concealed her identity and worked as a teacher at the private Eto Academy.The purpose is to develop ultra-high-precision artificial intelligence AI for education.

In Eto Academy, there is a class called Class 3, Class 0, which contains students with zero motivation, zero ability, and zero future.Sho Nishitani (Rintaro Mizusawa) abandoned his studies for some reason and was reduced to Class 0.In this Class 0, there are Konno Naoto (Matsuda Genta) with the lowest deviation value, Todo Yukimi (Ohara Azusa), the daughter of Eto Academy principal Makiko Todo (Miki Mizuno),Takenaka Tenju (Yukiki Yamashita), who was originally a special admissions student but refused to go to school, Yurijojima Yu (Okuno Sou), who once caused violent incidents, and others.Konno said to Nishitani:“Do you dare to bet with me?The new head teacher will resign within a month.”

At this time, Class 0’s new homeroom teacher Kagami and deputy homeroom teacher Serizawa arrived.Kagami said to the students: From now on, you must fully experience the joy of becoming my subordinate and work hard to repay my expectations.

Billionaire Kagami Rei (Ryosuke Yamada), the CEO of Japan's largest chaebol group Kagami Group, and his secretary and bodyguard Serizawa Ichika (Haruka Kinami) work as teachers at the private Eto Academy.Served as the class teacher of Class 0, Grade 3, which had a concentration of %low-motivated, no-talented, and no-promising students.

One day, Kagami and Serizawa were walking on campus when a table fell from the sky.Then, Sho Nishitani (Rintaro Mizusawa), a student from Class 0 who came over, said one thing: there is campus bullying in the class.Kagami believes that if he can solve the problem of school bullying, it will be of great help to the research and development of AI teachers.

The next day, Kagami ordered the students in Class 0 to take out their tablets and distribute questionnaires to them.That was a questionnaire about school bullying.

Umeno Himika (Juri Uesaka)'s tablet cannot be turned on, so Serizawa gives her a spare tablet.At this time, Todo Yukimi (Ohara Azusa) raised objections to the content of the questionnaire and said that being suspected by the teacher was a blow.Facing the arrogant Yukimi, Kagami bluntly said that the focus of this questionnaire is not whether school bullying exists, but to confirm who is being bullied and who is bullying under the premise that school bullying exists.

Kagami Rei (Yamada Ryosuke) and Serizawa Ichika (Kinami Haruka) solved the bullying problem that occurred in Class 30.However, before I could feel relieved, something went wrong again. This time, a school grade list was posted in the classroom to rank the students in Class 0, from Army 1 to Army 3.

Kagami saw it and said: “This is an incredible system. Why are students with poor grades and conduct at the top of the pyramid!”.Serizawa ignored Kagami like this and told the students to tear it up immediately.One of the students, Tian Marumoto (Koizumi Mitsusaki), said: "Whether it is posted or not, there is a class system in the school anyway", and his words were echoed by many students.

Everyone in Class 0 was in chaos because they cared about the class system.Dean of Students Junpei Dohashi (Munenori Nagano) and others ordered Kagami to find a solution before Todo Yukimi (Azusa Ohara) and Naoto Konno (Genta Matsuda) and others came back.

That night, Kagami asked Teach (Yumi Adachi) how to eliminate the school's class system.Teach made a suggestion to Kagami.Kagami wants movie guru Suzuki Tsukasa (Kashiwagi Yu) to make a movie and let him exhibit it at the film festival.At the same time, Yukimi and others formulated a plan to get rid of Kagami.

The Film Festival of Class 0 and the Revenge of the First Military Students.The two lines are intertwined, leading to an unpredictable ending.

Kaga Mirei (Yamada Ryosuke) and Serizawa Ichika (Kinami Haruka) received a task from the academic director Dobashi Junpei (Nagano Munenori), asking them to convince Takenaka, the only student in Class 0 at Eto Academy who has never been in school.Dzi (played by Yuki Teru Yamashita) asked him to return to school.

Sho Nishitani (Rintaro Mizusawa) and Hika Umeno (Juri Uesaka) express concerns about Kagami.According to Nishitani, he and Takenaka were classmates in the second grade. Takenaka was a genius who ranked among the best in the national mock exam.Even if his attendance is not up to standard, he will not be expelled. This seems to be a special consideration to ensure that he can enter the University of Tokyo.

Kagami was very sensitive to the word genius and decided to confirm it in person, so she and Serizawa went to Takenaka's home.

Takenaka meets Kagami while playing games at home.When Serizawa asked him why he didn't go to school, Takenaka replied: “There's no point in going to school.”Because he believes that the school courses teach the knowledge he has already mastered, and online communication is enough to meet his communication needs with friends.After listening to his explanation, Kagami actually praised him and said “You are right”, but...

At the same time, the principal of Eto Academy Todo Makiko (Miki Mizuno) returned from an overseas business trip and reunited with her daughter Yukimi (Azusa Ohara) who was suspended from school because of bullying problems.

Kagami Rei's (Ryosuke Yamada) father, Kagami Miharu (Masachika Ichimura), who is also the president of Kagami Group“, collapsed and was taken to the hospital.After receiving the notice, Kagami Rei and secretary Serizawa Ichika (Kinami Haruka) rushed to the hospital.On the way, Serizawa witnesses Lina Matsushita (Kurazawa Anina), a student from Class 0, meeting a middle-aged man she met through an app.

It seemed that his father was just anemic. When he saw Kagami's face, he scolded her and said that if he had time to come to a place like this, he might as well re-examine his business plan.

The next day, Kagami heard about Lina from Serizawa.He excitedly said that this was a good opportunity to obtain first-hand information about his father's life, and immediately set out to investigate.Kagami went to Lina's place of work, showed her the photos of Lina meeting many middle-aged men that were obtained using special methods, and ordered her to stop her father's work.But Lina said, you can take care of it if you want?”, don’t listen to Kagami.

Kagami sought advice from Teach (Anda Yumi), formulated a battle plan, and told Lina I will increase your SNS fans 100 times, so come to school.
Lina longs to be recognized by those around her.Kagami has a strong desire for recognition.The two somewhat similar people caused a commotion.On the other hand, Serizawa is very concerned about Kagami and Haru's relationship...

Mirei Kagami (Ryosuke Yamada) and Ichika Serizawa (Haruka Kinami) met the principal of Eto Academy, Todo Makiko (Miki Mizuno) for the first time.Kagami expressed appreciation for Makiko's management methods and zero-shift system, calling it “ efficient”.Makiko also expressed her gratitude to Kagami for properly handling her daughter Yukimi (Azusa Ohara) who had a bullying problem, but she seemed to have concerns about Kagami...

The next day, Makiko announced the academy's reform plan to the faculty and staff.This plan is very strict, stipulating that problematic students will be expelled from school and the class teacher will be held jointly and severally responsible.Serizawa asked Makiko how this would have a negative impact on herself as the head teacher of Class Zero, how to deal with it...

At this moment, Kagami was called by health teacher Sakai Miyako (MEGUMI).On the way to the health room with Miyako, they met Osugi Minami (Komiyayama Rina) and other girls.It turns out that Minami likes Ayumu Hanai (Ryuga Sato), a boy from Kagura High School, but because of something, she had a dispute with the girls from Kagura High School.Miyako, who accidentally witnessed this scene, intervened to prevent the dispute, but he supported Minami, saying that love is a real-life contest that puts a girl's self-esteem on the line.Kagami was involved in this——.

On the other hand, Konno Naoto (Matsuda Genta), Matsushita Rina (Kurazawa Anina) and others found out that Kusakabe Ryuta (Sunada Masahiro) from Class 0 liked Minami and started to take action.

In this commotion, Kagami and Serizawa had a big fight about the principal Makiko.Serizawa, who was criticized by Kagami as a "disqualified secretary", ran away from home.Kagami had to continue executing the plan without Serizawa...

Kagami and Serizawa broke up, and Class Zero’s love strategy plan.What outcome will the actions of teachers and students bring?

Because none of the students in Class 0 submitted their admission application form, Kagami Rei (Yamada Ryosuke) was scolded by the dean of students, Dobashi Junpei (Nagano Munenori).Therefore, Kagami asked the students in Class 0 to take the career adaptability diagnostic test that is also used in the Kagami Group's employment test.

That night, Kagami and Serizawa Ichika (Haruka Kinami) asked Teach (Yumi Adachi) to analyze the results of the diagnostic test.Teach said: “I noticed a student——”.

The next day, Kagami and others interviewed Nishitani Sho (Mizusawa Rintaro), Umeno Himika (Uesaka Juri) and others separately to inform them of the results of the diagnostic test.Konno Naoto (Matsuda Genta) tells Kagami that he wants to find a job, but he doesn't know what kind of job he wants to do.

On the other hand, Mitsui Hikaru (Mirai Shida) strongly opposes Kagami's use of career adaptability diagnostic tests to determine the direction of further education.She believes that as long as you adapt to the students' personalities, the future will appear naturally.

However, in front of Mitsui, the graduate Sarina Majima (Haruka Kudo) whom she once taught appeared, and she came to discuss something.Kagami advises Mitsui, who can't even handle it as a graduate, “You are overworked and should reduce your workload”——.

At this time, Serizawa was called by the principal Todo Makiko (Miki Mizuno).Makiko said to Serizawa: %You know everything, right?What happened between Kagami and me——.

Makiko, who knew Kagami's past, finally took action.Those are the secrets that Kagami herself doesn't know, the problems she is about to face in entering higher education, and the students who are growing up in a place where Kagami is not around.All parties are intricately intertwined, and the story accelerates dramatically toward the final stage.

Never allow failure - Kagami Rei (Yamada Ryosuke) led the students of Class 0 in a challenge in response to the Eto Academy sports meeting.

According to the instructions of the principal Makiko Todo (Miki Mizuno), Class 0 who causes trouble at the sports meeting every year will be deprived of the qualification.However, Kagami and Serizawa Ichika (Haruka Kinami) objected to this.Mitsui Hikaru (Mirai Shida) also said that this year’s Class 0 will be different with Kagami and Serizawa.Makiko insisted on her decision and said that if she participated in the competition but came in last in all events, Kagami would be fired.

After Kagami accepted Makiko's conditions, she immediately started selecting participating members together with Serizawa and Teach (Yumi Adachi).The event with the highest winning rate is only the men's relay race, which has a 4% chance.The members include Haruka Shoji (Matsudai Koya), Kotobuki Hitoshi (Sato Shunsuke), Hashimoto Komichi (Imai Ryutaro), and former track and field team ace Yu Jojima (Okuno Sou) who retired due to injury.

Konno Naoto (Matsuda Genta) tells Kagami that Jojima can no longer run.Kagami asked Nishitani Sho (Mizusawa Rintaro) and others for help, and formulated a plan to let Jojima start practicing running again.Matsushita Rina (Kurazawa Anina) told Kagami that Jojima did not accept it because of Todo Yukimi (Ohara Azusa).

At the same time, Xuemi received an order from her mother, Makiko, asking her to drop out of school.

Why is Jojima always by Xuemi's side?What is the relationship between the two?The reason why Yukimi and Jojima dominate Class 0 will soon be revealed.

Foreshadowing, all recycled——

VS Principal Chapter finally reaches its climax!

Kagami Rei (Yamada Ryosuke) has regained some of his lost memories.He discovered that the principal of Teito Academy Todo Makiko (Miki Mizuno) was her homeroom teacher in elementary school, and about the confrontation with Makiko on the rooftop in elementary school... Kagami asked Ichika Serizawa (Haruka Kinami):“Choose the school with that principal to regain his memory, right?”Serizawa replied that he didn't know whether this choice was correct.

At this time, Jojima Yu (Okuno Sou) from Class 0 contacted them and said that Todo Yukimi (Ohara Azusa) was missing.Kagami and Serizawa immediately began to search for Yukimi's whereabouts.Jojima also posted in the group chat of Class 0 that Yukimi was missing, and only Nishitani Sho (Mizusawa Rintaro) and Konno Naoto (Matsuda Genta) immediately started searching.The other students, who usually couldn't stand Xuemi's behavior, ignored them at all...

On the other hand, Makiko also tried to contact Yukimi, but no one answered the phone.At that time, Makiko discovered that the recorder originally placed on the shelf was missing.

At this time, Xuemi was listening to the recording in the voice recorder on the roof of Teito Academy.Then, Umeno Himeka (Uesaka Juri) and Jojima ran over...

Kagami Rei (Yamada Ryosuke) asked the students to discuss the contents of the cultural festival.However, some students stated that they did not want to participate if Todo Yukimi (Ohara Azusa) and Jojima Yu (Okuno Sou) were involved.Some people said that when they see Yukimi, they will think of Umeno Himika (Uesaka Juri) who was bullied and feel pain. Kagami responded that everyone has a responsibility in this matter...

Kagami is called out by Todo Makiko (Mizuno Miki), and she takes out a letter said to be delivered by Uchimaki (Kamiki Ryunosuke).It was said that Kagami would have to wait until Kagami's memory recovered before giving it to him.At this time, Ichika Serizawa (Haruka Kinami) came over with Yukimi, Jojima and Himeka.Yukimi, Jojima and Makiko apologized to Himeka again.Ji Xiang said that although she cannot forgive them immediately, she will work hard to forgive them one day.Seeing Himeka like this, Kagami also decided to face the past and took certain actions.

Just then, Chairman Tatsumi arrived at Eto Academy.Facing Kagami who greeted him, Tatsumi said modestly: “I'm not a great person.”However, when Kagami said: “It's great to be able to come to the scene as the chairman”, Tatsumi started to say: “The so-called scene is just a garbage-like scene...”.

Jixiang and Xuemei.Makiko and Kagami.Then there is Serizawa.Those who forgive, those who wish to be forgiven, and... those who cannot forgive.Amid all kinds of thoughts, the academy and Class 0 are facing the biggest crisis.Can the divided Class 0 be reunited?Don't miss the shocking climax -.

Finally the tearful finale has arrived!

Kagami Rei (Yamada Ryosuke) understood the meaning of what Teach (Adachi Yumi) said: "I am the same as Kagami-kun" and was shocked.It turns out that when Kagami suffered a fall accident, part of her brain was transformed into AI in order to maintain her life.The next morning, Ichika Serizawa (Haruka Kinami) who came to visit Kagami saw that he was still sitting there, so she planned to ask for leave for him.At this time, she discovered Teach being activated...

Teach, who appeared in Class 0, revealed the fact that he was observing the students through Kagami. The students screamed in fear and fled the classroom one after another due to the sudden change.The commotion quickly spread to the faculty room, and even Mitsui Hikaru (Mirai Shida) and others who learned that Kagami and Serizawa were the CEO and secretary of Kagami Group respectively could not hide their surprise.

Principal Makiko Todo (Miki Mizuno) confessed everything.Tatsumi accused them of using students as experimental subjects without permission, which was a big problem, and ordered Kagami, Serizawa, and Makiko to be punished.

Kagami's incident was also reported in the news, and the students were disappointed.However, Nishitani Sho (Mizusawa Rintaro), Umeno Himika (Uesaka Juri), Konno Naoto (Matsuda Genta), Todo Yukimi (Ohara Azusa), Jojima Yu (Okuno Sou) and others believe in KagamiDon’t quit halfway, start taking action…

Teach finally appeared in the classroom again and began to act according to his own will.Reality and virtuality intertwined, and the school fell into chaos.Class 0 is torn apart.Kagami unable to stand up.What will be the ending of this fantastic story starting from 0?

Don't miss Kagami's final lesson!