Toaru Majutsu no Index: New Testament - Volume 18, Chapter 4: A Worthwhile Battle at Heaven’s Peak - "Light".

Supreme Degenerate Lust System—the cheat ability that no man should have, but Alex? Alex earned it.This was the tale of a boy who wanked so furiously, so relentlessly, that his own dick—his loyal, overworked, war-torn comrade—finally called it quits and fell off.The same boy who was so hopelessly obsessed with a toothless, wrinkled gilf that he died doing what he loved—slipping in his own divine nectar like a tragic hentai protagonist with a severe addiction problem.He thought that was the end.That his dream—to finally pork a gilf—would go forever unfulfilled.But fate?Fate was a kinky, twisted bastard.When Alex opened his eyes, he was no longer lying in a filthy, crime scene-esque bedroom covered in the stains of his sins.No.He was in a new world—a world of magic, kingdoms, dragons, elves, and all that fantasy nonsense.But Alex didn’t care about any of that.Swords? Magic? Heroic quests?Boring.No, he had ONE mission.A sacred goal.A holy pilgrimage.To finally find the ultimate, well-preserved gilf and achieve his life’s work.And with the Supreme Degenerate Lust System at his disposal?Nothing would stand in his way.Not kings. Not gods. Not even the laws of nature themselves.The legend of the Lustful Fool begins now.

In the last life, Jiang Xi, who loves acting, devoted her heart and soul to Yuan Jinchen, and she worked hard for her acting skills, and finally gave up to become a first-line star for him. As a result, the Yuan Jinchen brought another woman to their house, intimate in front of her, so she accidentally fell to the floor and died.

In this life, she re-entered the showbiz circle. Jiang Xi said that she would live for herself. She would not give up her career for the scum. The person who harmed her in the last life stood at a low place to bear her dazzling light. But Star Road is not a thoroughfare, beauty and acting skills are not enough to support her to go on smoothly. She needed a backstage that would give her stability.

“So when you marry me, I’ll be your backstage .” Jiang Xi just blinked and agreed. Jiang Xi, who marries Qin Cheng in a low-key manner, is starry, and occasionally there are a few jumping clowns to make trouble.

- Description from Novelupdates

The world is governed by the Seven Legendary Heroes, their authority absolute and unchallenged even by their own descendants. They manipulate the world and its people according to their whims.Jonan, son of one of these legendary heroes, discovers his affinity with crystals and mastery over flames, yet lacks skill with weapons, which brings shame upon his family. As he delves deeper into the dark secrets connecting the heroes' power to the rifts and an ancient evil lurking, waiting for the right time, Jonan must move forward with unwavering determination.

After his fall, the Duke who was distant with his wife and daughter recalled his memories of another world. With a new perspective on life, he swore to cherish and protect those two.