No Ginga just loves to kiss. (=・ω・=)
You mean both kou and ginga? Nope. They never swing that way. They are like siblings or besties who interested in the same person.
i guess its from all the kisses & threesomes (with the girls yuu hooked up with)
They don't swing that way, they only have eyes for Yuuzen but Ginga is very puppy like and likes to kiss them both a lot. That's how it happened. (≧∀≦)
They had sex and it's kinda dark welp it happens before the chapter 1 starts
No they had sex
Kouetsu and Ginga had sex since they found out about Yuuzen's test?