MTL - Within Ten Meters, Fly In Situ - Chapter 5 "Die under the peony flower."

A boy awakens alone in the Fairy Tail world, lost and uncertain. As he ventures through this magical realm, he unravels the secrets of his mysterious new identity, unlocks hidden powers, and carves out his destiny in a land brimming with wonder, danger, and limitless adventure.“Check out my other work, Reincarnated as Ash: A Pokémon Tale.”

Aldric, a young man from a remote village who doesn’t know much about games is forced by his dorm mates to play the latest and most popular virtual reality game — Magician Online, a magic-themed game with a magnificent medieval world. Armed with curiosity, he played the game without serious intentions. However, unbeknownst to him, he actually awakened the most supreme talent in the game.

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

- Description from Novelupdates

Damien's life was ruined two decades ago by betrayal: his dearest friend Ethan and sister Serena betrayed him, leaving him impoverished and broken. Damien was consumed by vengeance and spent years rebuilding his kingdom, preparing to strike revenge.His plan is now being carried out: he sends his son Nate to seduce Ethan's daughter Evangeline, with the intention of breaking her heart and destroying her family. But as old secrets resurface, Nate discovers harsh facts about his father's betrayals, compelling him to doubt everything.Meanwhile, a shadow from Damien and Ethan's past, James, reappears with his own desire for vengeance, threatening to destroy both families in the concept of killing two birds with one stone.Betrayal by Love is a compelling story about love, vengeance, and the deadly consequences of justice.Who will ultimately triumph in this battle?