basically toono & Yuu got into the "photography club" when in reality it was known as "Yarichin Club" or "Sex Club". So, in order for them to be official,they had to have sex with someone,so if they didn't do it by a certain time, they will get fucked by the members themselves. In the end,they didn't have sex with anyone and right when toono was about to get booty fucked, Yuu claimed that they were in a relationship. Akemi finds out its not true but keeps it a secret
Now,for Yachan, he's practically jealous of his cousin Yuu so what he's trying to play is taking the most precious thing from him(or in short trying to steal something from him to be better) which would be his dearest friend Toono.
So, Yachan plans to steal Toono away from Yuu as a source of revenge,but I think he's starting to fall in love with him so there's a twist to that.
For Yuri,he's known for being the biggest fuck boy in the group(he plays both roles and likes using toys and is known for given the best blowjobs) so when he met Fujisaki, Fujisaki instantly fell in love with him because he saved him(must read chapter to understand)and confessed to him many times and wouldn't stop loving him.So now we're starting to see this relationship slowly process
As for Tamura, he has a serious crush on Yachan but doesn't know how to react chill or a certain way when around him so there's that.
Ikome and Akemi are going out,but Akemi never has sex with anyone unless it's Akemi so I know for sure their relationship is going to unravel sooner or later.
Did this help? I know it's long but I tried to shorten it as much as possible (=・ω・=)
Thanks, @PierceTheScorpio
You're awesome! (●￣(ｴ)￣●)
Awe ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄ @snow27
Finally got an update.. but what's the story about again? (╯°Д °)╯╧╧