((1)) Main- Shitsukekata = Nijuumaru – Kasuga tense from work then impulsively picks up a homeless guy to be his pet. On the next day, he finds out his pet is a new co-worker.
((2)) [Spin-Off] Otte Otte, Koi o Shite – Kasuga’s subordinate, Yoshimoto senses that someone following him. The stalker turns out to be his co-worker, the creepy Ishida.
((3)) [Spin-Off] Boku no Osekkai Darling – Kasuga’s Boss, a single dad Nobuo drowns himself with alcohol after seeing his sole teen-son, Hikaru went to love hotel with a guy, wakes up again, a beautiful gigolo’s riding him!
((4)) [Spin-Off of 3] Ore to Anta no Aisho wa - Story of the son, Hikaru
Shitsukekata = Nijuumaru