Start with a blood-drinking sword and destroy the world of immortal cultivation

[Slow to warm up + no spiritual roots + early martial arts training + not a single female protagonist + not full of fun + not killing, please be careful if you don't like it] Ye Buwen traveled through another world and was wanted at the beginning, surrounded by thousands of officers and soldiers. Without food and hunting skills, he was about to starve to death. Ye Buwen awakened the special ability of blood sucking and health bar. Chopping trees can restore health. As long as the health is not zero, he will not die. As long as the health is full, he can heal all injuries and conditions. I thought it was just a small blood sucking skill until he found out. He can rely on this skill to practice martial arts without eating or drinking for a month. He can accept countless beatings and recover instantly. He can eat all the poisons in the world without dying. He can build his own body crazily without any side effects. What does this mean? This means that he is an innate body refining saint, and all extreme challenges will only make him evolve. It also means that he is an innate forbidden body, and all side effects are ineffective against him. Burning life in forbidden techniques will make you stronger, give me a dozen. Forbidden techniques require the entry of all kinds of poisons into the body, no problem. Forbidden techniques require severing one's own meridians and shattering one's body, no problem. Forbidden techniques require... No need to say more, give them all to me.