What manga is this?

Does anyone know the name of the manga where the seme and uke both attend the same university. The uke has blonde hair and the seme has dark hair. Originally, the uke was going after the seme's sister, and the seme said that if he came over he would introduce his sister to him but that was obviously a lie. The uke is also really into video games and plays them a lot. (I'm not sure if this part is true but something like when the uke realizes his feelings he compares confessing to taking down the final boss in a game or something like that).

Anything helps!!