He's Leafa's friend and mentor in ALfheim Online, known for his skills with concealment and high-level dark magic. In the real world, he's her classmate and has a crush on Suguha—though he doesn't exactly get rewarded for finally confessing, ending up with a punch for his trouble.
He plays a crucial role in uncovering Sigurd's scheme and investigating how the Salamanders managed to infiltrate the Sylphs. When he finds Leafa upset at Aarun, he convinces her to leave and head back to Sylvain. Later, when Leafa returns from meeting Kirito and lets everyone know the group is planning an attack on the World Tree, he's right there in the middle of it all.
Content compiled by AnimeList.moe from publicly available sources.
