Naruto System in One Piece - Chapter 515: Granny Chiyo

An internet troll who wanted attention, the reader criticized his favorite web novel, saying: “The protagonist is dumb and the author is stupid.”

Author: “… Got it.”

Unfortunately for him, the author actually listened to his (troll) feedback. The formerly lighthearted tale of a cute harem master suddenly became super dark and edgy. The reader could only helplessly look on as the the protagonist was abused and betrayed, finally embarking on the road to becoming completely evil. Everything was a mess!

After that the reader transmigrated into a strange world. How come the person in front of him looks like the protagonist (evil undead version)? Just what is going on?!

Note: Du Zhe (读者 meaning Reader) and Du Ze (杜泽 the character’s name) sound almost the same

- Description from Novelupdates

As the ruler of a munitions empire, Tang Mo unexpectedly fell and was transported to an entirely different world, where he also unexpectedly acquired a “King of Munitions” system.In this underdeveloped world, Tang Mo relied on the abilities granted to him by the system to drive the development of the entire world.After all, the desire for civilization conquest had always been the driving force behind progress, and life had continuously evolved between attack and defense over tens of millions of years...So, selling assault rifles to these archers and training knights to be tank operators... there shouldn't be any problem with that, right? XD

Chu Huai was parasitized by a ghost, he became weak and frail, soon afterward he died.

After entering the horror world, Chu Huai was harmoniously transformed into a man in women’s clothes.

On the first day of the instance. Everyone stares blankly at Young Lady Huai, who was holding the quilt calmly climbed onto the man’s bed: “I’m a little afraid of the dark and ghosts, can I sleep with you?”

Jin Tianyi: “…” I’ll pretend not to know that you are a man.

- Description from Novelupdates