Review Detail of KnightOfDeath in Harry Potter : twin of the boy who survived

After reading the beginning chapters here's what I can give as a synopsis: A child born as the twin of Harry Potter, was cast aside by his family, the Potters, and ultimately ended up living as an orphan. Dumbledore himself even casting the child aside after forcefully consuming the boys life force to give it to Harry. Alone with nothing but a system and his previous knowledge of this world, the child will make his own way in the world of magic. (The system only seems to be there to give rewards exclusively so far)