Kokoro Amatsu

Kokoro Amatsu (天津 心 Amatsu Kokoro) is the Aoba High School's Girls Volleyball team Coach and the class teacher of class 3-3 at Aoba High School.

Appearance
Kokoro is a light-skinned young woman short brown hair that is usually tied in a short ponytail with it is parted in the middle with a few stay hairs framing her face on one side, brown eyes and she has a slim, short stature.

Kokoru usually wears sports related clothes as Physical Education is her subject.

Personality
Kokoro appears to be an energetic and caring teacher who is quite mature and she keeps all her students under control, even though she is one of the youngest teachers at the school and she gives advice to her students.

History
Kokoro graduated from the same university as Kōshi Usa and she is a new teacher at Aoba High School where class 3-3 was the first class under her.

Kōshi Usa
Usa is Kokoro's fellow colleague in Aoba High School whom she graduated with from the same university and they are very good friends.

Sumire Inukai
Sumire is Kokoro's fellow colleague where the duo have a good relationship with each other.

Etymology

 * The name Kokoro means "heart, mind, soul" (心).
 * Kokoro's surname Amatsu means "heaven/heavenly, sky, imperial" (天) (ama) and "haven, port, harbor, ferry" (津) (tsu).
 * Amatsu is an homage to the Amatsu Station in Ōita, Japan.