Why Is This Alpha Like This?

Synopsis: A humorous ABO story set in high school. Duan Yi accidentally transmigrates to a parallel world, changes from an Alpha to an Omega, and even marries his sworn enemy. Three years and two children later, life is hard but happy. Just when Duan Yi accepts this fate, he transmigrates back! Duan Yi, sitting in a high school classroom: - Damn it! At least remove the mark when I transmigrate back!