| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Chair please | 978-4-89325-25O-O (4-89325-25O-X) |
Yasuko Kanno · Yasushi Kono · Yasushi Koyama · Yasushi Kuno · Yisook Kim · Yoshihiko Kanno · Yoshiko Kamo · Yoshiko Kuno · Yuhsuke Koyama · Yusuke Ken · Yusuke Koyama