A Wild Last Boss Appeared! 4
| Volume Title | A Wild Last Boss Appeared! 4 |
| Japanese Volume Title | 野生のラスボスが現れた! 4 |
| Light Novel | Yasei no Last Boss ga Arawareta! |
| Publisher | EARTH STAR Entertainment |
| Light Novel Label | Earth Star Novel |
| Author | Fire Head |
| Illustrator | YahaKo |
| Target Readership | Male |
| Volume | 4 |
| Release Date | April 15, 2017 |
| Pages | 336 |
| ISBN-10 | 4803010358 |
| ISBN-13 | 978-4803010350 |
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