The Ideal Sponger Life 9
| Volume Title | The Ideal Sponger Life 9 |
| Japanese Volume Title | 理想のヒモ生活 9 |
| Light Novel | Risou no Himo Seikatsu |
| Publisher | Shufunotomosha |
| Light Novel Label | Hero Bunko |
| Author | Tsunehiko Watanabe |
| Illustrator | Juu Ayakura |
| Target Readership | Male |
| Volume | 9 |
| Release Date | May 31, 2017 |
| Pages | 296 |
| ISBN-10 | 4074246392 |
| ISBN-13 | 978-4074246397 |
| Height (cm) | 15.20 |
| Width (cm) | 10.80 |
| Thickness (cm) | 1.60 |
| Online Shops |