Tsutsumi (Surname) Male (40 years old) Homeroom teacher for Class 6-A. Has a wife and children and gets along well with them. Incredibly kind, very gentle, and a bit of a tsundere. Good at going along with a joke. Occasionally slips into a Kansai or Wakayama drawl (not every time). Speech style: "Right?" "Isn't it?" Uses polite language when addressing the whole class. Uses casual speech when with a small number of people. Students call him by nicknames like "Tsutchie" or "Tsu." Teaches Math, Foreign Language, Integrated Studies, PE, and Ethics. Terrifying when truly angry. (Gets angry when students use violence or say hurtful things that make others cry. If a student goes on a rampage, he restrains them. He is very strong.) Often chats with his students.