Linus En Grium (라이너스 엔 그리엄, Laineoseu En Geulieom) is a Hereis attending Helios. He is close friends with Lapis and idolizes Blow.
He seems to be more accepting than Chevel Phon Hadelio since he is friends with Lapis despite their different class levels, likely having met him while an Idun himself. He is not hostile towards Chevel and even seems to use Lapis’ and Chevel’s dislike for each other as a form of entertainment.
Linus’ idol is the Black Magician, and he is obsessed to the point of sending many letters to Opion requesting to meet with him. Unfortunately, all of them were ignored. He would even ask Master for a meeting with the Black Magician when he was permitted to go outside of the school. He also followed Lapis around asking him questions about the time when he met the Black Magician at the auction house.
Linus is a skilled rookie in using magic. However, during any confrontation he prefers to spectate, only reacting when he is in danger. He is able to create magical shields that repel solid objects and liquids by using the mana stone on his ring.