Rakuin no Monshou - Volume 1, Chapter 7: Mirage Kingdom

This world became a playground for various other worlds. Every living creature was digitized and awaited the endless slaughter and torture of the players from other worlds.Yi Zheng, who had become a mob rabbit in the Beginner's Village, decided to lead a group of rabbits. They sprinted across the grasslands, did crunches, bench-presses, rowing, and swimming etc.A year later, when the players descended, they saw more than just a group of small monsters.They saw an army of terrifying, demonic, muscular rabbits!The Rabbit King sitting on the throne high above waved a carrot as he threatened, “From this day forth, don’t even think of leaving Beginner's Village!”

After accidentally transmigrated into the world of Hunter x Hunter, Akira discovered that he was an extremely rare natural Nen user!With the Nen ability Pokémon Master, he could automatically spawn Pokémon simply by traveling or participating in events.As he journeyed to various places, his Pokémon team grew larger and more formidable!The beautiful and powerful “Psychic Queen” Gardevoir.The “Purple Glutton” that devours all evil Gengar.And countless pseudo-legendary Pokémon!Before he knew it, Akira had become the strongest in many fields across the world!Now standing before you is the world strongest Nen exorcist, the strongest Floor Master of Heaven Arena, a Triple-Star Hunter in the fields of ruins, gourmet, and bounty hunting, and one of the world' top five Nen users—Akira!TL Note -This is a Translation

This novel is also known as Retrograde Gaming

Due to not being able to buy a game helmet, diabolical Li Huailin made a determined effort and made his own game capsule entering into the new online game 《Heart of Glory》. But he didn’t think that he actually got his game character stuck as a bug.

Other people get experience from fighting monsters, he loses experience from fighting monster; Other people get experience and money from doing quests, not only does he lose experience from doing quests, he even loses money.

Right when he thought that he couldn’t play this game anymore, his character died once and his experience suddenly skyrocketed. And thus he was enlightened…

If you don’t seek death then you won’t die, to level up Li Hailin started his life of desperately seeking death.

- Description from Novelupdates

Arnold never thought his gaming skills would land him in a romance novel—as a doomed side character, no less. To survive, he hijacks the heroine's “system,” bending the story to his will. But when he dodges a deadly duel, he catches the eye of the heroine, Lara, his own step sister—and her love is a dangerous game. Arnold must outwit the plot and his step sister who's not afraid to kill for love. In this LitRPG romance gone wrong, survival isn't just about beating the system—it's about escaping the heart of a yandere.