MCU : Unlimited Potential

A man died from a zap of lightning. He found himself trap within a void filled with darkness with no sense of time. From that moment afterwards, for an unknown reason he was burnt for gods knew how long. Until one day, he managed to obtain the opportunity to escape from the situation and be reborn. what he didn't know is that he was reincarnated into MCU and to his surprise as Tony Stark's son. But that would only be known to him in the distant future. MC will have a semi gamer's system. The system could not actively help him. No AI from the system or any mission/quests or shop. The system help him in tracking his progress and speeding up his learning/training progress. MC will become a mutant in the future but he would not know his ability until his awakening English is not my first language and I'm not using google translate. Expect from me many grammar mistakes. I'm still learning. This fanfiction is purely for fun. May be dropped anytime. May contain a lot of eastern cultivation element.