The World's Least Interesting Master Swordsman 4
| Volume Title | The World's Least Interesting Master Swordsman 4 |
| Japanese Volume Title | 地味な剣聖はそれでも最強です 4 |
| Light Novel | Jimi na Kensei wa Soredemo Saikyou desu |
| Publisher | Shufu to Seikatsusha |
| Light Novel Label | PASH! Books |
| Author | Rokurou Akashi |
| Illustrator | Shirako Miso |
| Target Readership | Female |
| Volume | 4 |
| Release Date | August 30, 2019 |
| Pages | 322 |
| ISBN-10 | 4391153467 |
| ISBN-13 | 978-4391153460 |
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