Skills Cost HP in DNF? I Instantly Heal to Full!

[Perfect Triple Awakening at Level 15] [Transmigration] [Invincible] [Decisive and Ruthless] [No Saintly Protagonist] [Multiclass Team] Li Ye got incredibly lucky when he went out: after an intimate encounter with a big truck, he transmigrated to another world. It took Li Ye some time to discover what made him different. Even after being struck by lightning and burned to a crisp, he could instantly return to normal! On the day he awakened, a celestial phenomenon appeared, so vast that everyone gasped. Then a score and the words "Ghostblade" appeared in the sky, prompting a burst of laughter from the crowd below. Li Ye tried hard to keep a straight face, barely stopping himself from laughing out loud. So what if I lose HP?! Losing HP is the last thing I'm afraid of! In a dungeon, Level 15 Li Ye relied on his regenerative ability to survive two rounds of Bloodflame Tempering, then attained Kazan's perfect original triple awakening! And in the Sky City, Li Ye successfully mastered and surpassed the power of Kazan!