In a department known as “Okura” where misfits assemble, a pair of detectives with a generational gap work together, using the slightest clues to get closer to the truth behind each case.
College student Tadashi 'Hachi' Inukai is tired of feeling like a loser. But that all changes one day when he accidentally conducts a mysterious ritual he finds online, summoning a demonic yokai to the mortal plane, nicknamed Izzy. Bonded by magic, Hachi and Izzy must figure out how to navigate life, love and murder.
An original medical murder mystery surrounds an unknown killer coccus (bacteria), that leaves no trace in the victim's body, which enables it to be used as the perfect weapon to kill. Fujimaki Tatsuomi is a pathologist working at the Pathlogy department at Meikyo Medical University Hospital. He's looked down upon by the other staff around him, and his relationship with Maho his wife, a former nurse, has cooled down. After a patient's suspicious death, he makes a new discovery; when the deadly bacteria "Gift" invades the body, the patient soon dies, but the "Gift" leaves no trace thereafter, enabling it to be used as the perfect weapon to kill. As a result of this discovery, Fujimaki's life dramatically changes. While searching for a way to treat his ailing wife's heart disease, he becomes embroiled in a conspiracy surrounding the killer bacteria "Gift."
Mihoshi Taiyo is the CEO of investment company Sunshine Fund and self-proclaimed human investor. He holds the belief that "Assets are people. No investor will dispose of their assets." Mihoshi Taiyo approaches people who are having difficulties in their personal lives or business career. He talks to them and proposes doing a start-up together, allowing them to dream again.
Crushed by his sudden forced retirement, a professional soccer player pivots into a new career when he starts working for a sports management company.
Ishizawa Hajime works as a sales department chief for a trading company. The younger employees complain about the company, including having to work overtime and a lack of innovative working methods. Ishizawa Hajime looks at them with an intimidating glance and the young employees run away from him. One rookie employee, Mugita Ayumi, begins to work in Hajime Ishizawa’s sales department. Mugita Ayumi tries to adjust to her new work environment, but it isn't for her. The only time she can feel comfortable is eating her lunch box at her desk alone. One day, while she is eating her lunch box alone as usual, Ishizawa Hajime appears in front of her.
When Mio was young, she lost her parents in a great flood and also became separated from her best friend Noe. Afterwards, Mio found her talent in cooking and eventually became a cook. Meanwhile, Noe has become an oiran (high-ranking courtesan).
A quiet teen's life is shaken up when she's forced to be her arrogant neighbor's slave. He loves her, but they both have a lot to learn about trust.