Mob is challenged to a one-on-one fight with Black Vinegar Middle School's shadow leader, Hanazawa Teruki, otherwise known as Teru. Mob doesn't use his powers but Teru goes all out on him, destroying everything around him. Teru continues to unleash his incredible power when Mob suddenly remembers a tragedy that happened between him and Ritsu...
And you are my first enemy!
!وأنتَ عدوّي الأوّل
Und du bist mein erster Feind.
Y eres mi primer enemigo.
Y eres mi primer enemigo.
Tu es mon premier adversaire.
E tu sei il mio primo, vero nemico!
Por fim, você é o meu primeiro inimigo.
И ты мой первый враг.