Ijima goes to library for his job proposal and likes a youger guy that works there, in another day when he goes to the library, he sees the young guy touching an older man. (That youger guy is a seme)
Kazumi (seme)/ shougo(uke) - cousins that like each other Hiroki (uke)/ masahiro(seme) -
Ai Hime Ai To Himegoto