ツンデレ従姉妹と小悪魔な姪が可愛すぎるので、エロ教育して孕ませちゃうお話

For some strange, sudden reason Hideo Shijou is sharing his bachelor's pad with a cousin and niece he just met.

In a cramped one-bedroom there's no way to resist his urges!

One girl is serious and moody, and one is teasingly naughty.
Fiddle and fawn and, gradually, exploit the bishoujos.

A fun cohabitation life of JK incest is waiting for you.

[From DLsite English]