Toole  

, トゥール

The AI assistant created by Yggdmillennia was a female homunculus named Toole. She was one of many mass-produced homunculi used in the Greater Holy Grail War. As a commander, she fought bravely and had a "neat and lively personality." In terms of her character, she is described as being like a female teacher with sex appeal but who lacks manners and can be coarse at times.