in the very first chapter when he walks into their apartment with a hickey on his neck and was kind of lying about it? http://iweb11.mangapicgallery.com/r/newpiclink/anti_platonic/1/b06cd5bce1b01b6584357cecbb6abe9c.jpeg
oh and also this page, where he mentions that he still has sex friends that he's keeping in touch with? I don't know if it's a translation issue like is he talking about sex friends that he had in the past? but that together with the hickey thing was really giving me bad vibes...
http://iweb11.mangapicgallery.com/r/newpiclink/anti_platonic/2/d454f99bc85d82da768a115b08a311c8.jpeg
lmao no, ryo wasnt sure if io was serious as him in the relationship so i guess "just in case" he had his sex buddies and ex partners w him. io, on the other hand, was just sort of testing him and told his brother about him—the one where he entered the apartment? anw, when io confirmed his feelings, ryo didnt feel the need to have contact w past (s)ex buddies anymore bc he's pretty devoted to him lol, so he deleted them! tadaa, they date.
in the first story, so did Ryouya actually cheat on Io or was he faking? the seme is cute and all but I hate cheaters with a burning passion so I hope he didn't.