Anyone knows spoiler?

I saw it on TikTok.
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Basically MC parents used to abuse him when he was a kid. One day he went to the shed that he thought was abandoned to escape from them. But turns out a blond boy lives in there (which is the same blond man in the current chapters). MC thought the blond boy was a ghost. They played together all the time and became best friends. MC gets a chance to study abroad and he’s so excited cause he finally gets to escape the abuse. Blond boy gets angry and possessive of MC telling him not to leave. But MC leaves anyway. And that’s all I got. I’m guessing when MC was abroad he lost his memories due to trauma or sumn cause he doesn’t seem to remember his parents abusing him or the “ghost” that he played with as a kid?