Adalmann

Adalmann (also spelled Adalman) is a supporting character in the anime That Time I Got Reincarnated as a Slime, particularly prominent in Season 2.

He is an undead being (specifically a wight, often appearing as a skeletal lich-like figure) who wears clerical/priest robes, reflecting his past as a high-ranking holy magic user and devout follower of the Luminous Faith. He was once a human priest but was reborn as an undead after death due to a reincarnation spell and a curse that bound him to guard a certain land for centuries.

In the story, he initially serves as one of Clayman's Five Fingers (known as the "Index Finger" or "White King"), commanding undead forces and defending Clayman's territory. During Rimuru's forces' confrontation with Clayman's subordinates (around the events leading to Walpurgis), Adalmann battles characters like Shuna, Souei, and Hakurou. Shuna demonstrates holy magic in a way that impresses him, leading to his eventual shift in allegiance.

After being defeated and later interacting with Rimuru's side, he becomes loyal to Rimuru Tempest, serving as a guardian (notably of a floor in the Dungeon/labyrinth) and one of Rimuru's powerful subordinates. He is a skilled holy magic practitioner (even as an undead) and shows a fanatic, reverent personality toward those he respects or follows.