After completing the "Survive 15 Days" challenge, the system hadn't introduced a new challenge, so Leyu never wanted to spend the rewards.
But right now, this was the ultimate moment! If you didn't use the rewards you earned, what was the point?
He added 3 points to "Residual Blood Physique," upgrading it to the highest-level Ice Blood Physique!
"Ice Blood Physique (Highest Level): your ice blood could deceive your body—no matter what negative condition your body was in (poisoning, serious injury, severed limb, paralysis, etc.), you could forcibly drive your body, and reduce both the effect and duration of negative statuses by 50%."
He upgraded the eternal skill point and invested it in "Beginner Qian Yuliu Biting Battle Technique!"
"Intermediate Qian Yuliu Biting Battle Technique (Intermediate): your current body's physical attributes increased by 30%, and you mastered all intermediate combat technique skills."
