1x1 - Devils' Crest

Actual Magic is the world's first fulldive VRMMORPG, and Class 6-1 of Yukihana Elementary School has been invited to playtest it. Yuma, Sawa, Konken, and Nagi form a party and head into a dungeon to take down its boss. Though the battle ends in success, they realize that there is no way to log out of the game. The lines between the game and reality begin to blur. What does Yuma see when he awakes?