Chiri Kitsu is a main student character in the anime and manga series 'Sayonara Zetsubou Sensei'. Known for her obsession with order, perfection, and symmetry, Chiri often reacts violently to anything she perceives as irregular or out of place. Her strict and uncompromising personality leads to comedic yet extreme actions within the classroom. As a member of Nozomu Itoshiki's class, Chiri's eccentric traits and literal interpretations often escalate situations, making her an integral part of the show's satirical and absurd humor.