One Piece: Don't Worry, I'm a Doctor

MC follows the crew – Don’t like it? Don’t read.Vir transmigrated into the world of One Piece.  Right from the start, he was being hunted down by a Devil Fruit users. Just an ordinary guy and a dying deer—how was he supposed to survive this?  Ding![Congratulations, host! You have activated the 'Traumatizing Miracle Doctor System'][Saving people while causing them severe psychological trauma will grant you a random ability from them! ] "Bro, I’m being hunted here, stop messing around—give me something useful!"  [Ding! Newbie gift pack reward: Antidote x1 ] [Antidote: Instantly neutralizes all food poisoning effects. ] Vir: Σ( ° △ °|||)  Good news: He has a system.  Bad news: The system is useless!  ---  Marineford War. Everyone’s eyes were wide in shock, their faces streaked with tears as they watched Ace get pierced through.  Vir: "Wipe those tears! Hold them back! A little fatal injury—still treatable."  Not long after, the Whitebeard Pirates were wailing over Whitebeard’s tragic death.  Vir spoke again: "Hold those tears back! Still treatable, still treatable!"  And thus, Vir began his legendary journey of flexing.  Aokiji: "I’m holding a severed leg, and this guy tells me ‘You are what you eat.’ Should I eat it?" Whitebeard: "That brat’s welding skills are top-notch. Don’t ask how I know!"Kizaru, who had been tasked with hunting Vir down, originally thought it would be an easy job. After all, he was just a doctor, right?  Yet now, as he found himself struggling to breathe under the sheer pressure of Vir’s Conqueror's Haki, he had only one thought racing through his mind:  "You’re telling me this guy is a doctor?""Uncle, can you fix my facial paralysis too? Wanna give it a try?"