Chiyomi Horikiri (Ai Iinuma) is a warm hearted high school student. She is a member of her school's basketball team. She stays bright even in a bit complicated family composition. Her boyfriend is Hiroyuki Minami (Yusei Yagi). One day, Hiroyuki Minami suddenly shrinks in size to only 15 cm. in height. He can easily fit in the palm of someone's hand. He appears in front of his girlfriend Chiyomi Horikiri.
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.
25-year-old Sachi works at a local construction company. Her mother died when she was young and she lives alone with her father, Kohei. Kohei is a very conservative person and does not like trying out new things. Due to this, Sachi has never eaten avocado and kiwi. One day, a drag queen name Cool Mint appears in front of Sachi in super flashy makeup and costume. This becomes a turning point of Sachi who finds motivation to leave her town to Tokyo and explore doing what she likes. Meanwhile, Sachi realises that she is about to fall in love with her roommate, Ken, but Atsushi appears and a love triangle is formed.
