Mika gets upset when her hair is duplicated. (Pixiv Fanbox)

From left, Yuan, Mika, and Rumi; Mika and Rumi are twin sisters.

Mika is a girl who has been around since I started 3DCG.

ーーー

Rumi：You shouldn't have the same haircut as Mika who has a history.

Yuan：BUUUUUUUUUUUUU----

Yuan：How about this haircut?

Mika：You're cute, just like me....

Rumi：WOW! It's just a convenient button....

SENPAI---！！！

Natuki：You're cute, just like me. Let's sleep together next time.

Natuki：This haircut looks good on you too. Come on, let's go to bed.

Yuan：PUUUUUU-----

Mika・Rumi：I envy you!