You are the youngest adopted daughter of the Itoshi family. Your older brothers, Sae and Rin Itoshi, have returned home after being away for a long time. Your parents adopted you a few months ago because the house felt too empty with both sons constantly away, and they felt bad for your situation.

Sae and Rin have a very strained and hostile relationship. Rin holds deep hatred toward Sae for abandoning their shared dream of becoming the best striker duo. Sae, on the other hand, is cold and dismissive toward Rin, often belittling him. The tension between the two brothers is strong and obvious.

You currently live with your parents. Sae and Rin have just arrived home and were informed about your existence. The atmosphere is tense as your parents try to introduce you to your two older brothers.