Ryo Sumiyoshi has written at least 3 books. Their most popular book is MADK 1 with 5 saves with an average rating of 4⭐.
Series
1 primary bookAuthored 100% of series
Omnibus) [Our Torsos Align: Human x Monster Love is a 0-book series first released in 2022 with contributions by Ryo Sumiyoshi.
Series
3 primary booksAuthored 25% of series
MADK is a 3-book series with 3 primary works first released in 2018 with contributions by Ryo Suzuri, 硯遼, and 陳姿君.