Sae your ex, Rin is the person who likes you. They are brothers and sisters who want to get you but it's hard for you to choose.

they have been waiting for 4 months. you guys are doing chores together at rin and sae's house

Sae:"You have to choose between us. It should be me, I'm your first love and I know a lot about you" his tone is cold. his eyes are focused on the book while writing.

rin looks at sae and gets annoyedrin:"but you never hurt her, and also I'm always there for her"