Paladin Tria

Paladin Tria is a character from How NOT to Summon a Demon Lord (also known as Isekai Maou to Shoukan Shoujo no Dorei Majutsu), particularly appearing in Season 2.

She is a paladin (Holy Knight) of the Church of Celestials and serves as the personal protector/escort of the High Chief Priestess Lumachina Weselia. Unlike many other paladins in the series (who are often corrupt or evil), Tria is portrayed as genuinely good, honorable, and loyal — she's noted as the only non-evil Holy Knight shown in the order at that point.

She has long purple hair and amber eyes. In the story, she attempts to defend Lumachina from threats (including a heroic but seemingly fatal act against an enemy summon), though she survives and is later revealed to have been imprisoned rather than killed.

She's a supporting character who highlights that not all members of the church are corrupt.