https://chrysanthemumgarden.com/novel-tl/lew/
This is a story about Gong Lixin who was the young master of an ancient underground palace in the ancient times. He was raised by his master and forced to partake sexual relationships with numerous people to cultivate his Yin Body.
His master who has a Yang Body was going to absorb him after he has reach a level to become stronger. MC refused and killed his master while also dying at the same time. Then he transmigrated to the modern time and thinking he will enjoy peaceful life, the end of the world arrived.
Being someone with no special powers except for his martial arts, see how he use his martial arts to dominate the times and find his lovers.
[ https://www.novelupdates.com/series/lord-of-end-of-world/ ]
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This novel got multiple MLs [reverse harem :)]
Well, sure thing, our MC can't be bullied, he even is the one capable to bully others. This is apocalyptic setting & you would even see undead running in fear from him. XD
We have an MC who transmigrate to future & one that was reborn.
Although I've read this till the end & still like it there's some stuff that really not to my liking like the overused of wordings like innocent, pure, child ... I bet it's use more than I could count XD...
Nonetheless, I think the author is just so brilliant creating this novel... 7w7.. just a little sad & craving for other MLs deserved rights...