I'm the Only One Left in the World

Traveled through time to a different world? What! Only when I am the only one left in the world every time can I return to the original world. Okay, how can I be the only one left in the world? The first world: the world of cultivating immortals. Um? Let them all ascend! Thank you, Master. Thank you, junior brother. Senior Brother/Junior Brother, why haven't you ascended yet? Well... My dream is for everyone to ascend! So touched, woo woo woo. The second world: the world of women. The third world: the ancient world. … This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.