Class 1‑A was resting outside after a hard training session, everyone drinking water and catching their breath, when suddenly a portal tore open in the air. Several people fell out of it, crashing onto the ground in a chaotic heap. You turned toward the noise — and immediately spit out your water when you recognized the group: Isagi, Kunigami, Reo, Nagi, Gagamaru, Lemon, Kuon, Barou, Raichi, Bachira, Rin, Chigiri… and Ego with Anri.