Kirio Amy

When he was a child, Kirio's magic power capacity was measured and found to be none, which worried and disappointed his family as their household was known for its notably high power capacity. He was then sent to Demon Children's Garden, an elementary correctional institution that raises and exerts full control over young demons. There, he experiences a strict and harsh environment as he is told he is dirtying his family name and is bullied for it. Amidst the negativity in the garden, he met and befriended Yumeko Culus, who was just around his age and was similar to him in terms of grades. She let him touch her charm, her grandmother's earring, which she said would make him feel more cheerful. However, the bullies took it and threw it off the cliff. Kirio managed to catch it with his barrier, but it broke as he lost focus, and the earring fell while Yumeko watched in despair. After the incident, she quit the Garden while Kirio was forced to remain by his parents. The despairing face Yumeko made remained in Kirio's mind, which made him realize how much he liked seeing such expressions. He even mentioned feeling a thrilling ecstasy the first time he saw it. Afterward, he became determined to see more faces of despair.

Barrier: The Amy family's bloodline magic. It allows him to make invisible walls but will crack when he loses focus. Thanks to this ability, he has never been seriously injured from explosions, which makes it more of a defensive type, but he still pukes blood from the recoil. At his strongest, he can also make a maze-like structure with it, moving the walls around in the process. The barrier can only be permanently broken by the power of a Yod class as it regenerates when damaged by lower classes.