Don: The Blood Chains - Chapter 47: Underboss.

Su Wan is a Realm Destroyer. She shuttles to different time-spaces using the identity of the “Cannon Fodder Ex-Girlfriend”, dedicated to plotting how to happily tear apart the male protagonist and the female protagonist. –There’s no such thing as protagonists who can’t be torn apart, only Ex-Girlfriends who don’t work hard enough~

- Description from Novelupdates

In a world where omegas are at the top of the social hierarchy, Lee Jiyeon, a female chef from the 21st century, finds herself transmigrated into the body of a poor Alpha girl in a world ruled by omegaverse dynamics.Upon awakening, Jiyeon discovers she has not only inherited the Alpha body but also a marriage contract with the tyrant Yura, making matters more complicated.In this new world, Jiyeon's culinary skills are not just a passion but a valuable asset. She gains a Culinary System that helps her rise from rags to riches.

An ordinary (?) grandfather, Choi Chuntaek. In an effort to protect his granddaughter, he started the virtual reality game 'Arkstar.'

Then... he accidentally obtained a legendary class?

Wei Lan accidentally transformed into a cannon fodder girl of the era. She was dissatisfied when she went to the countryside for her brother and broke up with her family.

Because he was greedy for the male protagonist’s “beauty”, he was framed by another cannon fodder’s female partner, and successfully married a second-rate man in the brigade. In the end, he died in a foreign country. It can be said that he was a master of death!

Wei Lan, who is familiar with the plot, said who the male protagonist loves! Please let me be beautiful alone!

                                                                                                                                                                                                                                                        The female protagonist who wears books and is a squeamish woman VS the male protagonist who was ruthless in the early stage and didn’t talk much in the later stage.

(The heroine has a delicate setting, she doesn’t like to stray in, her daily purpose is: sweet, sweet, sweet!)

Note: There is another male protagonist, not the male protagonist in the original book.

- Description from novelbuddy