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Arisugawa Seara, a tall and mature-looking sixth-grader, moves in with her crush, high schooler Seto Shuhei, and his little sister Koharu while her parents are abroad. Determined to win Shuhei’s heart, Seara uses her charm and persistence, despite his initial view of her as a kid, while Koharu becomes her ally. As Seara navigates life with the Seto siblings and faces challenges from peers like the jealous Arisa, this lively tale blends romance, comedy, and youthful determination, following a bold girl chasing her first love with unwavering passion in a story of growth and heartfelt connections.
