Suddenly, Buddy Police Instructor Earl Dawn comes out of a strange coffin which lands in front of Gao and his friends. Earl Dawn strictly says that "A child can't handle the duties of a Buddy Police." Meanwhile, a Hundred Demon named ‘Two-Headed Demon Dog, Orthros’ appears in Aibo Academy. The students start to fight each other because of the smoke let out by Orthros. While thinking of a solution, Gao is suddenly interrupted, not by ‘Death Shido’, but by ‘Death Sofia’!? Gao will arrest her while using Hero World, in order to show his role as a Buddy Police.