Kumo Desu ga, Nani ka? - Chapter Human-Demon Great War Secret.

This story revolves around a boy who was sent to a dark, mysterious parallel world in the body of his beautiful senior sister known as Lily. The lone girl ran into the night parade of a hundred ghosts the very day she arrived; seeking survival amongst the warrior’s dispute in a chaotic world, and forging her own demon sword! This is an unimaginable other world adventure!

This is the story of a boy who lived a secluded life in the mountains, tending his farm, rearing his fish, and dreaming his dreams. Eh? Did I suddenly conquer all worlds and become the big boss? Or am I still in a dream?

- Description from Novelupdates

Xiao Luo and his girlfriend had been in love with each other for four years when she proposed a break up. Because of this, Xiao Luo sped his car in the night and ended up in a car accident. But it was a blessing in disguise as he unexpectedly fused with a high tech system that originated from a universe hundreds of billions of light years away. From this moment on, the entire world started to run amok…..

Traveling through the world of comprehensive martial arts, Xia An awakens the god-level corpse-touching system, as long as he touches the corpse, he can get various rewards!

I wanted to develop wretchedly, but I just became a six-door patrol, and I was ruthless at the beginning!

Ruthless: “The pervert will die!”

Xia An: “Obviously you rushed up by yourself, so can you go down to the ground now…”

With being involved in various disputes, Xia An’s strength is constantly increasing.

“Ding! Congratulations to the host for touching Ye Gucheng’s body, gaining 20 years of internal strength, flying immortal sword moves from heaven and earth.”

“Ding! Congratulations to the host for touching Yang Dingtian’s corpse, gaining a hundred years of skill, and moving the universe.”

…

Many years later, Emperor Ming looked at Xia An with a wry smile.

“Wu Wang, why don’t you be the emperor?”

- Description from novelbuddy