Muscle Speak

Muscle Speak (マッスルスピーク Massuru Supīku) is a Caster Magic used by Joy Fullbun.

Description
A type of supporting Magic. By chanting some incantations, the user can increase the muscle mass of their surrounding allies. However, to increase the efficiency, the Caster's body must also be well-toned. Thus, the user usually needs to exercise constantly, every day.