Taumi Mayu

Detective Ryuji Mizuta's father-in-law, Ryutaro Oguro, wants to become a detective. Ryuji tells him about a case he has already solved as a trial, but his guesses are always off the mark. But when Ryutaro took him to a sauna in a hot spring resort, he said, "I have solved all the mysteries."

Tachibana, an alpha who turned from a salaryman to a yakuza, works under Goto, a beta, who is the young head of a group backing an omega brothel. But as a matter of fact, Tachibana was ordered to secretly keep an eye on Goto. What is the unknown secret of Goto, who rose to the top of the group’s ranks as a beta...?