川口 俊和 has written at least 3 books. Their most popular book is コーヒーが冷めないうちに with 2 saves with an average rating of 4⭐.
They are best known for writing in the genres Fantasy and Science fiction.
Series
5 primary booksAuthored 25% of series
コーヒーが冷めないうちに is a 5-book series with 5 primary works first released in 2015 with contributions by Toshikazu Kawaguchi, Ana Isabel Sánchez Díez, and 2 others.
Series
5 primary booksAuthored 6% of series
Before the Coffee Gets Cold is a 5-book series with 5 primary works first released in 2015 with contributions by Toshikazu Kawaguchi and Geoffrey Trousselot.