Episode 4 So Yuusaku is dueling Go Onizuka a character who is an Arc V character with a 5D backstory. Are first two part duel, I mean we can't Go being defeated in one episode. So Go didn't take the big corporation's money, he is going to Yuusaku for his own pride. Well maybe end of the duel, Onizuka a way to get popular again is team up with Yuusaku or hunt some knights of your own. End of the duel, they might not be friends, but there will be respect. Question I have, how long till all the protagonists know each other's true identities, though Onizuka doesn't count because his avatar and his avatar name, it is the real him, he doesn't have an alto ego like the others.