Tae Hongō, a reserved transfer student, is drawn into communal life by her friend Kokoro Himote, joining a shared household. Shortly after settling in, she unlocks a unique supernatural skill: generating physical duplicates through focused concentration, an ability first triggered during a pivotal moment in the series' debut episode. This power sees practical yet whimsical applications, such as assembling a full team of her clones for a spur-of-the-moment indoor baseball match.

Her role within the household revolves around collaborative humor and scripted spontaneity, often leaning into archetypal group comedy tropes alongside her housemates. During one storyline, she humorously channels a pop culture icon through cosplay, mirroring the series’ playful engagement with broader media influences.

While her duplication ability initially drives narrative intrigue, its prominence gradually recedes in favor of ensemble-driven antics and lighthearted situational comedy. Her life before joining the household remains unexplored, and no supplementary media expands her story beyond the core series’ focus on communal escapades.