The Bloodline System Novel by TimVic

A race known as the Slarkovs visited Earth in a future timeline. The earth was the next habitable world for them after they lost their home planet and began looking for a new one. Slarkovs agreed to live on Earth in exchange for an agreement that involved humans.

The Slarkov family exchanged their expertise and technology for a new house.
Except for a few who had minor differences, they were similar to humans, so assimilating into society wasn’t a problem.

Over time, Slarkovs and humans started to mate and have children together. As a result, the mixed blood species was established. Later, mixed-blood people were able to draw power from their heritage and accomplish incredible deeds.

Gustav struggles to fit in with a useless bloodline because he was born during a time when everything was determined by a person’s bloodline. His heredity only allows him to alter the color of his hair, crushing all of his ambitions and dreams for a bright future.

His fate is changed when he discovers a system that gives him the ability to unlock and upgrade lineages by successfully completing missions, but he is perplexed by two objectives with a five-year deadline. He will receive incredible benefits if he succeeds… But if he fails, only death will befall him.