One day, Haneda Mei (Ono Kari) woke up and found that she had lost a year of memory.While losing her memory, she also gained a strange happiness.She has a fulfilling job, her gentle fiancé Nishijima Kanata (Koike Teppei), and a reunion with her high school friend Sui Shinohara (Baba Fumika) who was supposed to have died. Everything seems to be going smoothly...

However, you are a murderer!“Colleague Aizawa Ryunosuke (Hyutou Kokai) accused her of this, and in the room where she lived before, a white shirt” stained red with blood was found.“What on earth did I do...?”Yayi was confused.

Afterwards, Mei Yi, who returned home, showed the bloody clothes to Nishijima and told her strange memories.She planned to go to the police station, but was stopped by Nishidao, who decided to send the bloody clothes for identification.

The next day, when Mei went to work at the company, she saw Cui.It turns out that Tsui is in charge of hair and makeup.

At the same time, Mei encountered various troubles at work.Moreover, she also received an email that said [There is a Lover in West Island]!?

The email also included a photo of Nishijima sleeping, showing a woman's hand on Nishijima's neck with white nail polish on her fingers.

Mei was convinced that the person in the photo was Nishida, and was shaken in her heart.Just then, Cui called and said: “Can you come to my house now?”

In fact, Cui is behind Mei Yi's troubles at work.Mei unknowingly fell into Cui's trap.She goes to Tsui's house and shows Tsui a photo of Nishida sleeping.Cui exploded angrily: “ Mingming just got married!”She declared: “Even if everyone in the world hates Mei Yi, I am the only one who is on your side.”

However, Mei discovers that the long white dress Tsui wore at the wedding was rented, and that Tsui's nails are also painted with the same white nail polish as the hand on Nishijima's neck in the photo.

“ Could it be that the person in this photo is Cui...?” Meiyi asked.Cui smiled and said:“You finally noticed.”“Why are you angry?Isn't this what you did to me?You took everything important from me.”

After graduating from high school, a few years later, Sui reunited with Souma (Naito Shuichiro) and became engaged to him.However……

“You killed Cangma!Cui said that because of Mei, her life was completely destroyed.Then, she said: ”What I am going to do to you next will be what you did to me.“”I hate you.Mei!%After speaking, she...