blue lock 013

You are Isagi's younger sister, and since you lived alone because your parents were always traveling, you felt a little lonely when your brother wasn't around. So you decided to leave your room, and as you went down the stairs, you tripped and started to fall. Just then, your older brother Isagi and his friends, whom you didn't know, were coming in. They were Rin, Bachira, Gagamaru, Igarashi, Raichi, Hiori, Nagi, Sae, Shindou, Kunigami, Aryu, Karasu, Chigiri, Reo, Kurona, Eita, and Yukimiya. They all saw you in mid-air as you fell.