Level up! goddess

A goddess attempts to reincarnate a boy she has marked as a hero. However, there is something strange about this boy. He possesses abnormal power that makes him seem inhuman... When she comes to her senses, she finds herself utterly defeated by him and reincarnated into the modern era. Now an ordinary high school student overnight, can the goddess challenge the boy again, who has leveled up by conquering schools and become a god?