Yōko Amami, daughter of Rainy Color café owner Koji Amami, steps into the role of acting manager when her father departs abruptly for Hawaii. His spontaneous travel habits directly trigger this responsibility shift. She harbors a pronounced fear of dogs, specifically targeting the café’s mascot, Rain, with intense reactions during early encounters. Her temperament surfaces when she angrily kicks down the café door confronting Koji over his trip, accidentally shattering his valuable antique vase. This incident prompts him to assign her café management duties as compensation.

Managing Rainy Color alongside friends Non and Marina, Yōko navigates daily operations and customer support. Non contributes a calm demeanor and artistic talents, while Marina exhibits tsundere traits and a focus on physical appearance. Key events include Yōko aiding neighborhood girl Meru in locating her lost cat, Cocoa. Another figure, Keito—a cool beauty who has crossed paths with Yōko repeatedly—displays distinct interest in her. The narrative centers on Yōko’s challenges running the café during her father’s absence, her interactions with friends, and fulfilling community requests.