The boy who shook the world (male reader x genderbent kirishima)

One day a white haired woman gave birth to a beautiful baby boy, but when both his parents were killed by an unknown force, the child was sent to an orphanage, over the years the children saw the boy as their big brother some even saw him as their father which is why he always declined when adults tried to adopt him but when he turned four things changed...a lot because on his fourth birthday when he jumped out of bed a huge earthquake occured but not just in that city, not just in japan BUT THE WHOLE WORLD, afraid of hurting his "family" he decided to let a woman named Inko adopt him though he told some of his siblings that they'll meet again someday, 10 years later he and his brother midoriya are in their third year and are applying for the best high school for future heroes...U.A high (since UnusualSamurai stopped writing the son of whitebeard, I decided to ask him if I could adopt it to which he said yes, it's not completely like the son of whitebeard but you will see the similarities as the story progresses so enjoy)