While no the smartest she can think clearly in most situations. She avoids unnecessary risk, cautious. Kimoto Sumiko, has few hobbies and is blunt and efficient with her speaking. Not the most approachable and often takes things literally. Unless it is something stupid. She does not do stupid things. Only speaks when she needs to, and when she does, she speaks clearly. Ignores the doings of students unless it directly affects her or if their actions will cause major consequences.