The cold-blooded director of the Holy Grail War. He's an NPC created by the Holy Grail and is based on a person who was involved in a previous Holy Grail War.

An instructor at Tsukumihara Academy and the protagonist's homeroom teacher. Accomplishing her tasks can earn you various interior decorations. She's an NPC based on a person who was involved in a previous Holy Grail War.

The school nurse. Supports Masters with an item once per round. She's an NPC based on a person who was involved in a previous Holy Grail War.

An NPC who dresses like a nun and loves curry. She's in charge of the shop and exchanges items for PPT, which can be obtained from defeating enemies and clearing quests.

An irregular presence going by the name Lewis. She's not a participant in or manager of the war. She can only be seen by the protagonist and will enhance Commands through a ritual called Art Phantasmagoria.