Childhood friends Kōta and Mei were third-year students in high school when Kōta suddenly died. Seven years later, Mei returns to her hometown and visits a place with mid-winter cherry blossom trees that were special to her and Kōta. To her surprise, Kōta, who is supposed to be dead, appears. He is still 17 in mind and body while she is now 24. Kōta can only be here while the cherry blossom blooms. Will he be able to tell Mei his feelings with the time he has left?

Showa-era detectives were passionate. Heisei-era detectives at least worked hard for the public good. But... Reiwa-era detectives have little interest in their jobs. They fight only for their own future and peace. Millennials with 100-year life expectancies don't take risks. One won't investigate cases, instead studying for promotion exams and kissing up to his bosses. One uses his charm to get through life with ease as he searches for another career path. They play it safe and make no waves. Yet these two keep getting embroiled in criminal cases…?! In a cool and stylish manner, this police story portrays the slack-off lives of these two harmless detectives!