In the Womb: The Neighbor Turns Out to Be the Villainous Female Emperor

[Siblings] + [Invincible] + [Sign-in] + [Everyday life] Lin An transmigrates into a mother’s womb, with a little sister in the womb next door. His sister turns out to have the makings of a Great Emperor! She cultivates in the womb, advancing by leaps and bounds every day! As it happens, in her previous life she was the villainous empress who struck fear into all of humanity. Lin An: Good grief, what do I do if my little sister is the ultimate villain? Anyone there? This is kind of urgent. Ding-dong! System online! Option 1: Submit to the villainous empress and help her do evil! Destroy humanity! Option 2: Drain the empress dry and claim her thousand years of cultivation for yourself! Save humanity!