| Bone Contraction Technique | |
|---|---|
| Name | |
| Hangul | 축골법 |
| Battle Data | |
| Martial Art | Unknown |
| Class | Support |
| Range | User |
| Information | |
| First Seen | Chapter 119 (Yongbi) |
| Known Users | Mad Blood Archdemon |
Bone Contraction Technique is an unique technique that allows the user to change the posture and physical appearance of their body. This technique was considered uncomfortable even for Prelate Mad Blood Archdemon until he got used to it.[1]