On the way back to the dormitory, Zhang Yu continuously attempted combinations of various gravity adjustments.
Eventually, he settled on the custom mode.
Since during the day, the physical exhaustion is relatively low due to studying and attending classes, he used the full-body 20 times gravity enhancement, which maximizes physical refinement without risking bodily harm, termed by Zhang Yu as daytime study mode.
For construction site work, he used 10 times gravity mode, with specific parts strengthened to 12 times, 15 times, and 18 times gravity, termed by Zhang Yu as nighttime work mode.
Zhang Yu understood that as his physical strength continuously improved, the intensity of the training gravity would gradually increase, aiming to maintain a state as close to the limit as possible.
...
In the blazing flames, Zhang Yu only felt his muscles change in the high temperatures, his strong physique gradually turning to ashes.
