Kiyoko Isagi

Kiyoko Isagi is a classmate of Shouko, and is the current Student Council President, having been elected to replace Ichou Setoka. During her second year of middle school, Isagi's mother told her to wipe a table. The cloth that she took felt indescribably filthy to her, and from then on she developed severe mysophobia, unable to touch others and refusing to let others touch her. One day, her friend Ase Shibuki greeted her by tapping her shoulder. This caused her to recoil harshly and without thinking, call Ase filthy. She later apologized deeply to Ase, but still felt guilty seeing her friend gradually lose her confidence due to her intense sweating.

Isagi very clearly sees Ase Shibuki and Naruse Shisuto getting closer, and does not approve of Naruse. She intercedes whenever and wherever she can.