This is a good. Normally, Rom-Com tend to be too much into blue-ball, but in this case it's supported by something else than some useless drama or stupid reactions. It's a good balance of humor & romance like the ones you find in Love Hina, My Little Monster, Ore Monogatari, School Rumble (in a way), etc.
I thought this was gonna be cheesy gimmicks and die out quick, but it's cheesy gimmicks that run great and the manga keeps getting better, with y'know, character and plot development and stuff. 10/10