High school student Yuta Asamura begins living with his stepsister Saki Ayase and her mother due to his father's remarriage. Both Yuta and Saki, who hold cautious values regarding relationships between men and women, agree to live with an appropriate sense of distance between them.
As long as it makes you 
happy, I'm fine with it.
ما دام هذا يُسعدك، فلا مانع لديّ
Hauptsache du bist glücklich.
Für mich verändert sich ja nichts.
Se sei felice, per me non c'è problema.
Se você está feliz,
tudo bem para mim.
Главное, чтобы ты был счастлив.