One year after the hospital occupation incident, Saburo Musashi (Sho Sakurai) of the Kanagawa Prefectural Police Investigation Division has another "worst day" ...! Kanagawa Prefecture's first international airport "Kanagawa New Airport" is suddenly occupied by an armed group wearing a beast mask!
Akizuki Haruto, a police detective on childcare leave, finds himself solving cases using the hints he notices while raising his infant son, Ren, in this light mystery. Along with his wife Saki, Haruto is navigating the challenges of parenthood when he is unexpectedly taken hostage during a robbery. Despite the tense situation, Haruto uses his keen observation skills to gather clues and secretly calls his own police division for assistance. However, as he deals with the unfolding events, he must also attend to Ren's needs, including diaper changes and feeding times, adding a unique twist to his crime-solving endeavors.
The story is set in a big hospital which is infiltrated and taken over by an armed group wearing devil masks. Musashi Saburo a police officer on leave of absence has to save the hostages within a set time limit.
Nakagoshi Chikara is married and has two children. His family lives together at a complex in Tokyo. He introduces himself as a novelist, but he is actually a ghost writer and writes essays for famous people. He is usually busy with his writing and doing house chores, but, when he sees people who need help, he can't ignore them. He approaches those people and asks them if they are doing okay and if they have a problem.