The Evolution System of Magical Creatures in the End of the World

Lu Wei traveled through time and became a rich second generation, But in the end, the apocalypse came after a few days of enjoyment. Fortunately, I woke up the system, but Why, why does this person look so reborn? Why does that person have a system? Also, can anyone tell me why this person is called Lu Bu? Fortunately, my system can be integrated with other people's systems. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.