Noah is in a world full of magic and monsters who finds it hard to fit in. Noah lost his parents, his former S-rank saviors who died during a deadly war against monsters leaving him as an orphan. He is the weakest student in his class, and he is ranked F because he has neither power nor confidence. Haunted by his past, Noah avoids interacting with people, therefore choosing to live alone. However, all things change when Sean, a talkative and lively person comes to sit beside him. Despite their contrasting personalities; Sean's joyful nature greatly contrasts with Noah's withdrawn character but despite this difference, Sean wants them to be friends. Noah begins opening himself up cautiously after a long time haunted by memories of the past which has made it hard for him to relate with others around him. Together, Sean and Noah will discover the truth about the mysteries of their world.