This "sibling romantic comedy" revolves around Masamune Izumi, a light novel author in high school. Masamune's little sister is Sagiri, a shut-in girl who hasn't left her room for an entire year. She even forces her brother to make and … Akane Fujita, Yoshitsugu Matsuoka, Minami Takahashi, Saori Onishi, Ibuki Kido, Yui Ishikawa, Mikako Komatsu Added on Amazon Prime 2022-12-05. Youtube Trailer