Cocoa leaves for a week and everyone immediately realizes the coffee shop stops being a home the moment she's gone. The whole OVA is just them figuring out how to get her back in time for fireworks, which sounds simple until you realize it's actually about how these girls have become each other's gravity. A comfort show that knows its real power isn't the jokes or the aesthetics, it's that you're watching a found family accidentally prove they can't function without each other.
Cocoa receives an urgent letter from her sister Mocha calling her home to the mountains, and she leaves her friends at the coffee shop behind for a long-overdue family reunion. But her plans shift when Chino, who considers herself Cocoa's little sister, learns about the upcoming fireworks festival in town and insists that everyone experience it together. Determined not to miss the celebration with her found family, Cocoa cuts her mountain stay short and rushes back, racing against time to make it for the festival's grand finale. This OVA captures what makes the series so charming: the genuine warmth between characters who've become irreplaceable to each other. It balances tender moments of family connection with the cozy comfort of the friend group's daily dynamics. The fireworks festival setting gives the story a nostalgic, bittersweet energy, emphasizing how these bonds matter more than obligation. Viewers who love low-stakes narratives centered on meaningful relationships and quiet character moments will find plenty to appreciate here. The pacing feels relaxed yet purposeful, letting emotional beats land naturally without forced drama.