This is a more sadder story and takes the happiness of bnha and flips it to sad. Where izuku really just gives in. If you really want to read more go a head.
So basically deku cant handle it anymore. He finds out his dad is All For One. His mom died..Then he runs aways and tries to commit suicide 10 years later. Then someone brings him back to the lov.
There might be a cross over
Just read the book.