S1·E45 There's One Day and 1 Hour Left Until the Game

Furuichi's group go to Himekawa's home, to start searching for En in online games. When they arrive they find the place is a giant skyscraper building, with several rooms dedicated to gaming. Most of the group have never played games, except for Chiaki, who immediately proceeds to find En in an online fighting game. Furuichi tries to get him to tell them where he is, and when he finally answers he tells them they have to beat him in a game before he tells them. Tatsumi tries to escape from Saotome, but is unable to throw his teacher off, even after showing off his new rock splitting abilities. It isn't until later in the episode that Beel takes matters into his own hands and decides to let Saotome train him. With Saotome training Tatsumi, the group's first teacher substitues for them, but everyone is away doing their own thing, except for the girl with the face mask, who for some reason got left behind.