After returning home from the Yang sisters' residence, Jiang Fei discovered that his mother was the only one at home. His father had gone to work while Shang Guanqi had brought Si Tuying to train at the martial arts training center.
Si Tuying had been very diligent in her training, especially after evolving to Level 4 from consuming the potions. She knew the gap between herself and Jiang Fei's capabilities had decreased. Moreover, as a Level 4 metahuman, she was fully capable of protecting herself. Once she acquires sufficient battle techniques, she would be able to accompany Jiang Fei wherever he went.
With that motivation in mind, Si Tuying worked even harder than before. She spent all her time on training aside from meals and sleep. Under Shang Guanqi's guidance, Si Tuying's battling techniques improved very quickly. Although she still could not be compared to the martial artists who had trained for decades, she was on par with normal mutants.
