Ringo is the 18-year-old Student Council President at Prefectural Sanada East Girls' High School. Her petite frame, fair skin, and short auburn hair secured by a light-green clip define her appearance. Large brown eyes and perpetually flushed cheeks earned her the nickname "Ringo," evoking the rosy "apple of the cheek." She wears the standard uniform: a grey vest over a white collared shirt with a crimson necktie, a reddish-brown plaid skirt, black knee-length socks, and brown loafers. Later appearances show her in more casual attire within Sanada North High's student council room.
Initially haughty and competitive, Ringo fervently believes in the superiority of high school girls over boys. This conviction morphs into an overt inferiority complex when boys exceed her expectations, often triggering prideful defensiveness, especially towards Sanada North High's student council. She exhibits significant air-headedness: easily distracted (particularly by food), prone to misinterpreting situations, and highly gullible, making her a frequent target for pranks. Despite this, she demonstrates genuine concern for others, notably the Sanada North High Student Council President, toward whom she develops ambiguous romantic feelings often masked by dismissive or combative behavior.
Recurring interactions with Sanada North High's student council drive her character development. A joint school festival ending in physical confrontation shifts her role from rival to a regular presence in their council room, signaling mutual respect and camaraderie. This evolution softens her initially rigid pride, though a competitive streak remains. She eventually gains agency, outwitting the boys who frequently deceived her and delivering poetic justice in their dynamic.
Additional traits include a large appetite, a fondness for cats, and being a heavy sleeper. Her appearance garners significant popularity among male students, attention she largely overlooks. Universally known by the nickname "Ringo-chan," bestowed by the Sanada North High Student Council President, her real name remains undisclosed.