Tokiwa Anzai, a composed yet adventurous transfer student from Yamanashi Prefecture, enters the main group’s orbit in episode 13 upon relocating to Minamiichigo Town. Prior to her arrival, she encounters her partner, Nene, by a riverside—an event preceding her school transition. Academically, she excels in biology and physical education but faces challenges elsewhere. Her passions extend to astronomy, nurtured by her prior astronomy club involvement, alongside talents in piano, cheerleading, and dodgeball.

As the eldest sibling to twin brothers, she navigates sibling dynamics while fostering their shared nonchalant acceptance of supernatural occurrences. Post-transfer, she juggles cheerleading and choir clubs, immersing herself in these roles while managing academics. A defining moment arises when she wrongly attributes a classmate’s piano struggles to her actions during a dodgeball match, grappling with misplaced guilt before reconciling the truth.

Her journey traces gradual integration into peer circles, marked by collaborative problem-solving and forging friendships. Over the series, she ages from 13 to 14, mirroring her personal growth. Visually striking with neatly styled red hair, golden eyes, and a school uniform subtly personalized with crimson touches, her aesthetic balances individuality with tradition. Her name—evoking endurance and calm—echoes her steady presence. Through supportive interactions and unwavering dedication to team efforts, she emerges as a reliable ally, enhancing group cohesion without seeking the spotlight.