This drama tells the story of an older brother, Jinren, and his autistic younger brother, Meiluren, who depend on each other for life.Cooperating with Mei Luren, who can live a trouble-free life as long as he sticks to a fixed schedule, Lu Ren leads a stable and uneventful life.One day, a little boy calling himself “Lion” suddenly appeared next to them, and they had to take him in, and the story begins.

Although they were still not used to it, in the process of living with “Lion” and the other three, the brothers understood that the background of his foster care was related to “a certain incident”. From then on, their peaceful days began to be swallowed up by a stormy whirlpool.

Civil servant Komori Kohito (Yagira Yuya) lives a peaceful life with his younger brother Komori Miruto (Bando Ryuta), who has autism spectrum disorder.Since the early death of his parents, he has always followed his younger brother's daily routine, getting up and going out at the same time, and after finishing work, he went to pick up the beautiful girl to go home.Just like this day after day, one day——

A boy who calls himself “ Lion ” (Osora Sato) suddenly appears in front of the brothers.

Americans are thrown into panic when a lion breaks into their home and claims it wants to live there.In order to help his younger brother Miruto, who is having difficulty adapting to the changes, and to resume his normal daily life, Miruto considers sending the boy to the police station.However, the mobile phone handed over by the lion received a message from an unknown sender, which said “I will be looking after you in the future”. This message reminded Jinren of a forgotten person——

In addition, at a certain moment, Jinren accidentally discovered bruises on the lion's body.

At the same time, in a certain county, Shogo Tachibana (Ri Mukai) is anxiously filing a missing persons report.

This incident gradually aroused heated discussion in society as a “missing mother and child incident”——

Who abandoned the lion?Who is the lion?——

The people of Gu and Meilu, who were confused by the sudden arrival of the lion like a storm, gradually became closer to the lion, and their relationship also changed.This warm suspense drama depicts people struggling to survive in order to protect precious things no matter what kind of predicament they are in, and shows family love and brotherly love. Now it has officially begun!

Because the lion (Osora Sato) came to the Komori family, the originally peaceful and peaceful life suddenly became shattered.

Kaoruto (Yagaku Yuya) is awakened by the screams of his younger brother Miruto (Bando Ryuta), who has autism spectrum disorder.When I walked down the stairs, I saw a mess in the living room, where the lion was playing with the beauty.The two men had to be appeased since morning, and the man was uneasy about whether he could continue to foster the lion here.

Not only that, the mobile phone handed over by the lion once again received a message from someone suspected to be his mother.

“Ringing the Bell in Software Paradise”

Although he didn't understand the meaning of the message, Lu Ren decided to take Mei Lu and Shi Zi to the library together.Libraries, bakeries and parks are regular Saturday routes for people from Gu and Meilu.When he arrived at the library, Jinren suddenly realized that a picture book he picked up might contain a location with mysterious information.When we go there, we might be able to meet the lion's mother... thinking this, he coaxed Meiluren into letting him play with the lion, while he hurried to the place indicated by the message.

However, just when he arrived at the designated place, both Gu and JC received calls...

A mother and son disappeared in Yamanashi Prefecture.The bloody clothes found in the riverbank are consistent with the DNA type of Tachibana Aio (played by Ono Machiko), and it is found that they are her clothes.

Tachibana Aio is the sister of Eruto (played by Yanagaku Yuya) and the others. Is the missing son Shouto and Shishio (played by Sato Okora) the same person?

The man searched for news related to the incident.There, I learned that my child-loving husband Shogo (Mukai Ri) was targeted and he was an employee of Tachibana City Construction.

Based on this clue, Jinren was convinced that Xiangwu was the father of the lion and decided to meet him.

At the same time, reporters Kaede (played by Sakurai Yuki) and Amane (played by Ozaki Takumi) of "Weekly Truth" also obtained the same information and began to track Xiangwu.

On the other hand, Tsutomu, Miruto, and the lion go to “Morning Glory Zoo” decorated with paintings painted by Miruto (played by Bando Ryuta).

After the three people had a great time looking at animals, they went to the exhibition venue. Onodera (Yusaku Mori), a colleague of Mirujin's design office who was in charge of the on-site painting event, encountered an accident...

Seeing her like this, Miruto took an unexpected action——.

“The suffocating pitching battle, the one who makes the mistake first loses”, the tactics adopted by the bunt hitters who saw the situation...?

A female body was found in Yamanashi Prefecture.Shishi (Osora Sato), who accidentally saw the news, learned that it might be his missing mother Tachibana Aiko (Machiko Ono), and was greatly shocked, and even developed a high fever.

As a last resort, Kaoru (Yagi Raku Yumi) had no choice but to take him to the pediatric hospital.Facing the registration form, Lu realized once again that he knew nothing about the lion's age and other basic information.He took a leave of absence and clumsily took care of his sick child, and suffered a lot.

That night, Kaoruto and Miruto (Bando Ryuta) accidentally learned that the lion had recently celebrated his birthday.

In order to surprise the lion, the two secretly called Mio (Asuka Saito), Tokichi (Yoshihiro Ogata) and Sadamoto (Sports Okazaki) to plan a birthday party for him.

On the other hand, reporter Kaede (Yuki Sakurai), who has been following the incident in Yamanashi Prefecture, approaches detective Takada (Kakizawa Yuuto) to inquire about the progress of the investigation.During the exchange, a new fact surfaced...

Amane (Takumi Ozaki) successfully photographed Aisheng (Machiko Ono) in a nightclub in Shinjuku.After receiving the report, Kaede (Yuki Sakurai) plans to publish the exclusive news that Ai is still alive.

X (Okayama Amane), who learns that Aisheng's living situation has been exposed, instructs Aisheng to escape from the current location immediately.

The next morning, Kaoru (Yagira Yuya), who wanted to know about Aisheng's situation, got in touch with Kaede.Yamanashi Prefectural Police Takada (Kakizawa Yuto) also came to the nightclub in Shinjuku based on reports and continued to track Aisheng.

During this period, a publishing house in Tokyo sent Miruto (Bando Ryuta) an invitation for a painting job, so Miruto and Funaki (Hirai Hirai) went to Tokyo for a business trip for one night.

The two of them spent the night together, and suddenly their cell phone received the message "I want to see you" from Aisheng.

Jinren hesitated whether to let Shishi meet her without knowing the specific situation of Aisheng, but after seeing Shishi's eagerness to see his mother, he decided to go to the designated place to meet with Meiluren and Shishi——

Why is Mio (Asuka Saito) at the amusement park?Why did she want to subdue the lion (Osora Sato)?...) Before the situation became clear, Yuuto (Yagi Raku Yuya) returned home with the injured lion.

The next morning, Jin Ren tried to ask Mio what happened at the workplace, but she was nowhere to be seen, so he decided to visit her apartment.However, he was rejected by Mio on the grounds that I can't tell you%.

At the same time, Aisheng (Machiko Ono), who was taken away by the police, hinted that he had killed his son, Shouto (= Lion).After learning the news, the Jin people were even more confused by this obvious lie.To make matters worse, Lion's phone received another message, as if to add fuel to the fire.

The next day, who is the mysterious figure waiting for Jin at the designated place...

The reason for Mio's action and the shocking truth between Ai Sheng and Lion are about to be revealed——.