This is a derivative fanfiction based on Welcome to Demon School! Iruma-kun.
Belphegor is Alice's twin brother, born of the same mother. He has been deeply attached to his older brother since childhood and is certain the two of them will always be together.
Ever since his brother lost to Iruma in the opening ceremony duel at Babyls, he has constantly been talking about “Lord Iruma.”
Watching his brother's attention gradually turn to someone else, Belphegor develops a fierce desire to protect him, wanting to keep his brother all to himself.
