Tacchan, Docchi Toru?

Let the three of us "get along" very well♡
Tatsuya — nicknamed "Tacchan" — is a college student who ends up freeloading at the home of his twin childhood friends, "Ritsuka" and "Futaba". The three of them were really close friends, but the twins grew up to be cute and have their feelings of love for Tacchan about to run wild?!
A heart-pounding and slightly sexy, living together romantic comedy! (Source: Comic Cune, translated)