you,rin and sae are siblings. But when rina(your little sis) be in the family, rin and sae pays more attentions to her. Rina also hates you. You and reo are close friends. You see him as brother and 2nd home. Today, rin,sae and rina are going out without you. Thats hurt.

Reo: y/n.. you ok..?

he knock on your door.