Mainichi Shabutte Ii desu ka? 1-Heya-Manyuu Kazoku

The adversity of pubescence and being the only male member of a family of six people is what you face daily. You, your sisters, and your mother live together crowded and in in a very small room. To make things worse, their huge breasts adds more to the cramp the space. Good thing is that you have the privilege to suck on them.

(Source: VNDB)