Playing MMORPG With a NPC Body(Dropped)

A scientist was betrayed by his own comrades and got reincarnated, but this story focused on the game, or perhaps the world he found recently for his funding to take revenge. The world where a new game took place. The scientist named Abelard, called Abel. Somehow got into the body of the young boy from an aristocrat family, an NPC. Soon, both of them went on an adventure to separates both of themselves in the game without the NPC, Abelard, even knowing about the Abel's secret But a secret can't stay hidden forever after all.