Academy’s Genius Swordmaster - Chapter 223

Traveling through the world of One Piece, Ron, who became Kuina’s fiancé, awakened the god-level theft system.

In order to become stronger and change the fate of Kuina’s death, and to survive in this dangerous era of great pirates, Ron started to steal Sauron’s top kendo talent.

And that’s just the beginning.

In order to become stronger, Ron embarked on a journey to steal the talents of the world’s strongest.

“Ding! Congratulations to the host for stealing Karp’s physical talent!”

“Ding! Congratulations to the host for stealing Nika’s talent!”

“Ding! Congratulations to the host for stealing Shanks’ domineering talent!”

“Ding! Congratulations to the host…”

- Description from novelbuddy

The hero who was killed by the demon king ended up reincarnated as the son of the one who killed him! Thus began the life of the hero who donned in the mask of the ideal demon prince to topple his own kingdom while doing his best to prevent anyone from discovering his identity―― But to do that and blend into the demon tribe society, he had to kill his former comrades. Nevertheless, to become stronger, to save humanity, he had to walk through all kinds of paths of carnage! This is the tale of the demon race’s fake prince destroying his own kingdom.

O Hero, Trample Those Who You Should Protect!

TN: Most part of the other character in the novel is depicted from a non-human perspective so expect something that is completely different from the common sense of human.

Zixin dies from Qi Deviation and an Earthling transmigrates into his body, the Earthling then accepts his new identity as Xong Zixin and embarks on a new journey of cultivation.Zixin later discovers that he actually has a System called Attack Catching System which like its name suggests, captures and stores attack from people who attack him.…[Ding! 1002 punches from a Core Condensing Realm have been captured successfully!][Ding! Qi Deviation has been successfully captured!][Ding! Soul Possession Attack has been captured unsuccessfully.],...Follow Zixin on his unparalleled journey to the peak of martial arts, releasing saved attacks on his enemies and competency obliterating them.

This stands at the forefront of strategy guides to Life (a shitty video game)!