In a world were mages are treated like a monsters, Levi the mage (16 years old) has such destructive power he can't fit in even among mages, so he decides to run away. In the process, he (literally) bumps into the young 13th prince Saphir (6 years old) who was running away from his own attendants. To keep himself out of trouble, Levi invites young prince to come too, but though Saphir appreciates the offer, but he says he has to go back. Later when they've both returned home, Levi hears Saphir was missing that day after an assassination attempt that killed his poison tester, and this lights a fire in Levi to protect the young prince. This is the story of a lonely teenage mage who finally finds a person who treats him as a human and a young boy who can finally feel safe when together with this mage. It's cute and very interesting, but be prepared for an intense age gap. I'm sure Saphir will grow up later, but Levi did confess while he was still a kid.
Trigger warnings: discrimination, attempted murder, kissing a minor.
Once Upon the Gates of Hell