She's a Passerby, But Can See the Protagonist's Halo - Chapter 57

A world only I know of, now I will take it all for myself.There’s no kind soul here willing to share and eat nicely with others.Only the ruthless one who will devour it all alone exists here.

Jun Ye travels through worlds for unexplained reasons and is always cast in subservient roles. Unfortunately, that wasn’t his style. Let the counterattack commence!

- Description from Novelupdates

Haruto Hayase was a normal high school boy in his third year, living a quiet life until his younger sister, Haruka Hayase, joined the same school. Haruka’s beauty and charm made her the center of attention, quickly becoming the school’s prima donna. But when a notorious gang leader set his sights on her, he did everything in his power to protect her—only to fail tragically. Haruka was brutally assaulted and tortured, and Haruto himself suffered an agonizing death. However, in a twist of fate, Haruto is given a second chance, waking up a year before the events that shattered his life. Armed with the mysterious ‘Debauchery System Slave’, he vows to exact revenge on those responsible. This time, he will use his newfound powers of the system and charm to seduce the loved ones of his enemies. From their mothers, sisters, and lovers to their closest friends, Haruto will make them his. His enemies will suffer as he steals what they hold dearest, ensuring their downfall in the most devastating way possible.

Lin Wei Xi found out after she died that she was just a cannon fodder in a novel, used as contrast to the gentle and considerate and virtuous female lead.The male lead was her ex-husband, the dignified heir of Yan Wang, his family were superior and brilliant, but the female lead was not her.The female lead was her concubine-born younger sister, and her husband’s white moonlight, his cinnabar mole, no wonder! After Lin Wei Xi died, her husband finally married her sister as he wished.She watched coldly at the two like honey in the oil, in love and harmonious, everyone using the success of her younger sister to contrast the impropriety of the original wife.Lin Wei Xi sneered, okay, since your love moves the world, then this sister will come back and be your stepmother!So she married her ex-husband’s father, the father-in-law she never met in the previous life, the country’s God of war, who has not remarried after losing his wife, the one that hold military power, the brilliant Yan Wang.Later Yan Wang, who was in his prime years and used to act decisively, looked at his small, delicate, much younger wife, and had a headache.No matter, she is still young, he have to spoil her, indulge her, teach her.