双子百合えっちアンソロジー [Futago Yuri Ecchi Anthology]

A single-volume anthology from Ichijinsha, launched in 2020, that collects short yuri stories centered on twin sisters. The book brings together multiple creators to explore the unique emotional and romantic dynamics between identical pairs, offering a focused, niche take on the genre. It stands as a concise but heartfelt entry in the publisher’s ecchi anthology line.