I am the divine lion eater, or am i

A regular human died in an accident at the young age of 17.

After he died he was given choices from a mysterious screen, he picked the race with the most potential, he also picked for him to go back to earth a day before he died.

This is going to have space exploration, empire building, and op ness. He will stumble upon many lucky chances that will allow him to inherent his divine lion ancestors memories and surpass them.

He can also change between a guy and a girl no guy on guy action sorry those people looking for it.