Series by カツヲ

In the bustling streets of Ueno, three elementary school girls—Yui, Sat-chan, and Kotoha—form the secret organization known as "The Colors." With their base hidden in a park, they dedicate themselves to protecting the peace of their town, tackling everything from neighborhood mysteries to quirky errands. Yui, the shy but determined leader, Sat-chan, the energetic troublemaker, and Kotoha, the sharp-witted strategist, bring chaos and laughter to their adventures, often roping in the town's shopkeepers, police, and high schoolers.

Hitori Bocchi, a painfully shy middle school girl, faces her greatest challenge yet: making friends with everyone in her class. After her only friend, Kai, moves to a different school and declares they can't reconnect until Bocchi befriends her entire class, Bocchi is left alone with her social anxiety. Armed with quirky strategies and sheer determination, she takes small, awkward steps toward connection, from befriending Nako, the girl in front of her, to navigating the chaos of group activities.