10-nen Sugite mo Anata wo Aishitemasu

Arwyn reincarnates into a novel as a vulnerable child trapped in an abusive family. Navigating the challenges of this fantastical world, she stumbles upon the young version of the male lead. Having read the novel, she knows that Shelby will eventually find happiness... but what of the current suffering the poor child is going through? She couldn't look the other way and extends a helping hand, which may lead to a chain of events that could ultimately shatter the original storyline.

(Source: Pocket Comics)