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"Did you take a rejuvenation potion?" She asked, tilting her hair squinting her brown eyes with curiosity. "You did mention you had some."

Rui shook his head. "Those were for rejuvenating the mind, negating the need to sleep."

Bella nodded, well familiar with mental rejuvenation potions herself. "How do you have so much stamina?"

"It comes from honing my stamina through strict intense physical training, and also from an Apprentice-level Martial Art technique called Helical Breathing." Rui explained. "It saves increases efficiency of energy consumption, allowing you to accomplish the same results with less effort."

"Hmmm..." Bella nodded. "Must be nice to be a Martial Artist. You have so much power, you must feel incredibly secure and confident."