Beginning of the End

Shouto and Momo's twin boys are sent back in time to warn them and everyone else about the horrible future they will face. With not many clues to start with and the reliance on two five-year-old boys, will the past save the future? How will this affect Shouto and Momo's relationship knowing that they will be married in the future, with children?

Credit: AO3; tigr3ss

LINK: https://archiveofourown.org/users/tigr3ss/pseuds/tigr3ss