He never had a name. 

People had names, not lab rats. The reason for his existence was to further science and die somewhere along the way.

"Subject Five" was what they called him. Under the name of science, they tormented him and derived a sick pleasure from his pain.

His dark life had a single solace in the form of his brothers and sisters sharing the same fate. Helping them escape cost Five his life, but he was happy knowing he did something for himself.

After waking up, he finds himself as the son of a noble in a marvelous world filled with magic. In his second chance at life, he vows to protect himself and his family from anything that threatens to destroy his peaceful life. Follow Five on his path to supremacy.

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This is a LITRPG novel, with the system playing a crucial, but supporting role. It isn't omnipotent and has definite origins which I'll explain later in the story. Another important aspect is world-building and crafting. I'll go into quite a lot of detail on both of them.