Kimi no Katana ga Oreru made: Gekkyuu Matsuri no Koigataki

The time is the Edo era! Tsukimiya Matsuri, a girl widely admired for her beauty, is faced with a big problem: the guy she likes, Tsukimiya Yonosuke, is not interested in her. She tries to demurely confess her love to him, but he doesn't take her seriously... because they grew up together ever since