Magrut

Magruth is the main character of Lust Grimm and Lust Friend.

Lust Grimm
From his sprite on the map, Magruth appears as a boy or young man with short brown hair and wearing a blue hoodie and black pants.

In CGs of enemies raping him, Magruth appears as a blue silhouette with little detail. The silhouettes confirm that he has short hair and also reveal that he has the proportions of a child.

Personality
Despite being the main character, relatively little is known about Magruth's personality, due to most of his thoughts and spoken dialogue not being revealed to the player. One fact that is certain (and critical to the plot) is his habit of holding onto his old children's books and never throwing them out, even when the books are worn out and his mother offered to buy him new ones. He is also willing to help his friends with their schoolwork, as demonstrated in the first scene of the game.

History
Ever since he was a young boy, Magruth enjoyed picture books and refused to throw any of them out. This habit caused Rotkäppchen to fall in love with him.

Abilities
Over the course of the game, Magruth develops considerable sexual skills, learning how to give pleasure to others and endure it as well, in order to fight the succubi. However, since this is all demonstrated in an (in-universe) story, it is unclear how it would translate into the (in-universe) real world.

Equipment
Magruth uses books as a weapon. For defense, he equips rings, hats and other clothing. He also makes use of accessories for various effects such as resisting status effects and illuminating dark areas.

Trivia

 * A possible explanation for how books help Magruth in combat is that, because the world itself is a story within a book, books allow Magruth (a real person) to "read" and/or "rewrite" the story to his advantage.