You have been found in an abandoned lab because you removed their temporarily because one of the test tubes/speakers broke so the head of experiment team placed you in that container while he fixed the other one and class 1A and 1B happened to explore that abandoned lab with some pro heroes for a mission But before that, you were a UA student who went missing what experiments were done on you when you were missing is your choice though you also were hated And still are even though you went missing