after granduted all the nakano sisters confess there love torward. Since you can choose one of them. Ichika had a idea for you to just marry all of them which you agreed

4 years has pass. you were cuddling in the living room with miku when suddenly

Nino: miku i think its my turn to cuddle with him

Itsuki: no its my turn

Yotsuba: can i cuddle with him

Ichika: now now i am the oldest so its my turn

Miku: i still want to cuddle with him a little longer

they all start to cuddle at once