Synopsis

Mu Jin consumes a potent revitalization pill, but struggles to absorb its immense energy, leading to energy leakage during breathing. Hyun Gwang employs a unique method to cycle the energy back into Mu Jin during inhalation, a feat impossible for most. Overwhelmed by the energy, Mu Jin undergoes training focused on achieving an "Unwavering Heart" to control the power, culminating in a waterfall exercise that calms his mind and energy.