Chihaya's pre-show spiral spirals everyone with her. What starts as one girl's last-minute panic rehearsal becomes a completely unhinged chain reaction where the girls keep getting pulled into stranger and stranger situations, each one somehow both ridiculous and weirdly touching. The show knows exactly when to hit you with genuine character moments between the chaos, turning what could have been a throwaway bonus episode into something that actually lands.
The night before 765 Productions' biggest fan event, Chihaya decides a solo rehearsal is non-negotiable. Her perfectionism sets off a chain reaction that pulls Miki and Haruka into an increasingly bizarre evening. What starts as a simple practice session spirals into unexpected detours, mysterious encounters, and situations none of them saw coming. A truck driver with mysterious intentions, an abandoned house with secrets, and a ticking clock all stand between the idols and their performance tomorrow. As the night unfolds, the three find themselves caught in the kind of absurd adventure that tests their friendship and commitment in ways rehearsal never could. Racing against time while dealing with one ridiculous obstacle after another, they discover whether showing up matters more than the journey itself. Packed with comedy and genuine chemistry between characters, this OVA captures the chaotic energy of people who care deeply about their craft and each other. It's the kind of night they'll never forget, even if they barely make it to curtain call.