ZUKO-044 Little sister got pregnant by four people

Big brother is suffering! I don't respect you, but for some reason, I love your four little sisters, and I have to live under the same roof with them, checking their development. Helping the four close-knit sisters with their homework, taking a bath together, and making sure they're sleeping properly... Even though I cherish my little sisters so much, big brother is told to go away, maybe because you were showing your dick at that time.