I Just Turned into a Mage, Why Does My Health Bar Increase by One Every Day?

Xia Yu traveled to a world where everyone changed jobs and had just awakened as a fire magician. But he didn't expect to get the talent of increasing his blood bar by one tube every day, so he made a decision on the spot that went against his ancestors. While other mages pursue high blue bars and high damage, Xia Yu pursues physical fitness fiercely. [Stand-in] When receiving damage that reduces the blood volume to 1%, it is immune to this damage. The cooldown is reset when the blood volume returns to 100%. "Huh? Each blood bar can be immune once, hasn't it cooled down yet?" [Contract·Balance] The blood consumed is converted into temporary mana equivalent to 3 times the value. "The thicker the health bar, the thicker the blue bar! Who said a mage can't kill people if he increases his physical strength?" Assassin: "Fire magician? Let me show you what the strictest father in the legal system is!" As a result, there was no fluctuation in the blood bar after one slash, and the assassin raised his head tremblingly: "Shh~ Can we still make peace?" After an unexpected encounter with a frost dragon, all the geniuses were beaten to the point of crying for their fathers and mothers. When they were about to be wiped out, Xia Yu stood up. "He used his face to catch the big move and he didn't die? How about a second move?" Encountering an enemy swordsman, a mage suddenly appeared when he broke through to the back row. "What do you mean you know a little bit about melee combat? Are the soul-eating flames wrapped around your fists? Gua!" Many years later, a crack in the abyss opened, and the alien demon descended with despair. When they saw space and time evaporating in the high temperature and the laws disintegrating in the distortion, they all began to tremble. "We said we went to the wrong place, can you believe it?"