1-4) Hiromu is neighbors with his lover and senior at design collage. Taku, but he is not ready for them to live together. Hiromu is hiding his true nature from Taku and he is afraid Taku will find out he is overly jealous and possessive when they start to live together.
5-7) Host Kakeru and his stalker Satoshi who eventually weaseled himself into Kakeru's heart.
Kiyomasa (uke) is a gangster looking host who is also in a relationship with chika (seme) who is a teacher. Kiyomasa used to be a student of Chika many years ago who had a hard life growing up so Chika offered him a place in his home. However, years after graduation Kiyomasa appeared on Chikas doorstep asking for a place to stay.
Ichinose, the number 1 at a host club, is a asshole who sees women as nothing but money and sex toys. Whereas the number 2 host is Youj, who have been a host for only a few months. Ichinose has a drunken one night stand with Youji who was sober and who liked him for a while.
The “Flow” In Flower