Tooru is very responsible, trustworthy, and intelligent, as well as calm and collected. Her extremely serious expression makes people sometimes think of her as a Kuudere. She likes when she is praised, for anything, like being smart or good at hiding things. She carries a bat to scare people away although she has no intention of using it. She has a pet cat named Tansan, whom she takes great care of. She is also a big fan of sweets and likes children.