Ryan Stark in the MCU

All the future chapters will be posted in the Fanfic genre book by the name, Ryan Stark in the Marvel Cinematic Universe. There are some rework like Grammar corrections and slight modifications have been done.
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Synopsis:
A marvel MCU fan got reincarnated as Ryan Stark, Son of Tony Stark. With a mind capable of creating anything of the concept you have, what kind of changes will happen to those who's fate had been already decided from the beginning.!!

(Inspired by the Chinese fanfic named Marvel Little Genius)

[All characters except the OC belongs to their respective creator's]