Centers around a disturbing murder case that occurs during a company trip. In the wake of the incident in which the company’s general manager is killed by someone, unexpected internal problems are revealed that had previously been thoroughly concealed to this point. Matoba Ikuko is a plain, gloomy and unfriendly general worker, but her work is fast and accurate. She becomes interested in the case and decides to lead her own investigation. Mikami Tazuko is a hardworking sales manager who witnesses her manager’s affair while on the trip and begins to develop her own theories through her private social media diary.
Yamane Mito lives her life as the charismatic influencer "MITOYAMANE", supported by her younger sister Miho. One day, she is approached by her agency about collaborating on an app. The app becomes very popular and Mito's face is spread around the world...
Botan and Miwako are half sisters. As Miwako comes of age, she is forced by her mother to break up with her boyfriend, who then starts stalking her. Both Miwako and Botan get entangled in the situation and things turn for the worse. This is a story of a turbulent love-hate relationship between the two women.
Yasu's mother passed away when he was very young and his father abandoned him. Yasu's wife, Misako, also lost both her parents when she was young. The two spend their days in happiness, watching their young son, Akira, grow up. Unfortunately, a freakish accident occurs that results in Misako sacrificing her life to protect her son. Yasu loses himself in grief and remorse, but recovers as he vows to raise his 3 year-old son as best as possible.