A hardcore gamer learns from mysterious rebels about the true nature of his horrific childhood and undergoes an initiation ritual to confront the little black monster that tormented him as a child … again.

Your description of the lead character seems misplaced and irrelevant, unless you specify that he meets the 'mysterious rebels' while playing one of his games online. Everything else is too confusing as to why it is all happening. What is this 'initiation ritual' exactly? Also, I want to know what the 'true nature of his horrific childhood' is to get a better understanding of 'the little black monser'. I would lose the '...again' at the end.