Responses
The one dating the step bro is his friend. It's a spin-off. As far as I know l, there's 3 different mangas in this series: The step bro series is the 3rd one. I don't think it's been uploaded in this website.
1) Osananajimi Dakedo Seiteki ni Suki desu. (main story) (childhood friends,Souta X Mitsuki )
2) Hysteric na Kurokami Megane-kun wa Igai to Kawaii (Spin-Off 1) (Fujie X Haruki )
3) Giri no Kyoudai dakedo Koibito no Futari wa Doudou to Tsukiaitai (Spin-Off 2) (Yuuya x Kazuma )
I'm confused some people are saying he's dating his step brother...who? What series? Cause it doesn't say that in this one.