Traveling Through Time to Cultivate Immortality: the System Is More Serious Than Me

The male protagonist watched a male and female doubles team accidentally travel through the world of immortality. Fortunately, there was a system, but what he didn't expect was that the system was even less serious than the male protagonist. Many heroines, many heroines, many heroines... Transformed from a useless illegitimate child with no meridians into the first Immortal Emperor in all time.