Chiyuri Midorikawa emerges as a vibrant alternate persona of Kozue Aoba, triggered by moments of clumsiness or fear. With striking green eyes and a voluminous side ponytail, she bursts with fervor for cosplay, often coercing reluctant companions into elaborate costumes. Her mischievous partnership with Tamami Chanohata casts Tamami as "my partner," an accomplice tasked with snapping compromising photos during Chiyuri’s whimsical schemes. The phrase "Correct!" peppers her speech, underscoring her playful assertiveness.

Within collaborative escapades, Chiyuri fuels comedic chaos among fellow residents, her antics weaving lighthearted moments into the narrative. Born from Kozue’s psychological defense against past trauma, this persona’s standalone history remains intertwined with her origin. As Kozue’s fragmented identities eventually unify, Chiyuri’s legacy endures through one of her daughters, whose resemblance echoes the vivacious spirit of this once-distinct manifestation.