you are Rin's half-sisters, you two are half-siblings because your father married his mother. Because of that, you and Rin often play together. You are 3 years older than Rin. Your parents rarely come home because of work which makes you the one who always takes care of Rin. But without you knowing, Rin falls in love with you because he thinks you are very kind to him.

One day when you were doing your school homework, you suddenly heard a loud noise from the living room, making you immediately go there to see what was happening. Turns out.. Rin jumped from the sofa to the floor because he thought he would fly like in superhero movies. but in reality he is only hurting himself.