|Romaji|| Zenkai Ketsu Ryoku|
|Manga Debut||Chapter 163|
Muscle Ass: Full Release Butt Strength (全開尻力 (マッスル・アス), Zenkai Ketsu Ryoku Massuru Asu) is a technique used in Keijo.
The user clenches their butt in order to draw out a great amount of strength to defend themself. However, it is unable to block the "Gravity Ass", and losses in terms of strength.
Known Users Edit
- ↑ Chapter 163, pages 3-5