The Fruit of Evolution: Before I Knew It, My Life Had It Made

Seiichi arrives at Barbador Magic Academy, where he's appointed as the new teacher in charge of F-class, a group of problem students, in order to save the academy.

Seiichi meets the extremely eccentric students of F-class and gets stuck playing the straightman before the class' old teacher, Beatrice, suggests mock battles so Seiichi can assess their abilities.

Seiichi engages the students of F-class in a mock battle and learns about the major problem they face while Kannazuki continues to sniff him out at the school.

Seiichi is finally reunited with his childhood friend, Kannazuki Karen, and they talk about Seiichi's childhood and his bullying until Oliga notices the Enslavement Bracelet around Kannazuki's wrist.

Seiichi spends time training F-class for the upcoming class competition, but when the day finally arrives, Seiichi is nowhere to be found, leaving F-class to defend the academy from the apostles of the Great Devil Order!

With the students of F-class defeated, their beautiful teacher, Beatrice, rises up to protect them and fight the apostles assailing the academy.