A young man from the modern era travels to the Demon Slayer world and becomes the descendant of Tsugakuin Yoriichi – Tsugakuin Najo. The protagonist is born with markings and natural transparency. There are two female protagonists (guess who they are): Muzan: "Don't come over here!" Kokushibo: "Come on, you will finish Yoriichi's unfinished duel!" Sango: "The ultimate battle!" (Slightly altered plot) (This book is not a cool novel; just having markings and transparency doesn't mean you can easily kill an Upper Rank! It's a coming-of-age novel.)

(Pseudo-invincible + female lead Shinobu Kocho + system runs away at the start) Shimotsuki Mirai transmigrated to the present day and has spent her childhood wandering around the forges of the sword-forging village, the clanging of hammers the lullaby of her life. The blacksmiths always said this child's eyes were too still, as still as a quenched blade, unaware that the vermilion burn marks on his palms, shrouded in years of wear, concealed an astonishing power no less than that of a Nichirin Blade. When he first met Shinobu Kocho, he only felt a stinging pain in his eyes. Before seeing the girl, all his information about her came from the precious little black box he couldn't bear to part with in his previous life, but now, the person from his dreams stood before him, more vivid than any description. The girl blushed, staring at the light dancing on his fingertips, asking if he was a deity descended to earth. Kanae leaned against the door, chuckling softly, "Such a wondrous boy is hidden in the sword-forging village." Looking into the clarity in the girl's eyes, Shimotsuki Mirai suddenly wanted the sword in his hand to protect that light a little longer, just a little longer...

Evil spirit + joins Muzan + eats people + no system.

(The protagonist is very bad! Very bad! No humanity, please don't mind if you accidentally enter!)

Manami, who depended on his younger brother for survival, joined the Demon Slayer Corps and became the disciple of Yoriichi Tsugukuni, the most powerful member of the Demon Slayer Corps. However, he failed to kill Muzan during an encounter with him, and thus became a sinner of the Demon Slayer Corps. He was expelled from the Demon Slayer Corps along with his master Yoriichi Tsugukuni.

When he met Muzan again, he had two choices: become a demon and make those who hurt him pay the price, or continue to live like garbage.

Wan Mi chose the former.

Since you have expelled me, I will live my life in the most horrible way possible!

If the Demon Slayer Corps can't tolerate me, then I will become an evil demon!

[Health Bar][Warrior of Chaos][Comprehension][Decisive Killing]

Are you good at fighting? What’s the use of being able to fight? The most important thing when you are out there is to have a lot of blood. My blood volume is a hundred times that of yours!

…

Traveling back to the Great Yin Dynasty, the emperor was skinned by demons, the demons devoured people, and the people suffered.

Awakening panel:

HP: Killing people can increase the upper limit

Comprehension: HP can be converted into comprehension

Mastering Martial Arts:

[Wild Wind Blade] Comprehend - [Wild Wind Breath Slash]

[Crazy Demon Stick Technique] Comprehend - [Demon-Subduing Vajra Indestructible Stick Technique]

【Iron Shirt】Comprehension-【Great Sun Immortal Divine Body】

If you don’t have enough understanding, then kill, kill, kill!

Panel, with my lifelong talent, let me see your limits and give me understanding!

Maoshan secret techniques, Buddhist Vajra, Heavenly Master Taoism, and all kinds of extraordinary powers are not as powerful as my sword!

This is a story of how a skilled otaku saves the world.

Because of his indulgence in playing the game, Luo Di becomes alienated from life. The result was that he became the most well-known Ranger in the game, «Cracked Earth». After crossing over into the world of the game, he found himself returned two years before the game had started, a point in history with subtle yet lasting effects.

The destroyed country was still intact, and his beloved woman hadn’t yet succumbed to the flames of war brought by the orcs.

Shadows of the undead still linger along its borders, while the masks worn by aristocrats had yet to be torn off.

Events have yet to occur, but Luo Di knew he couldn’t just grip his bow tightly and sit. He wouldn’t watch once more as these lands broke before disaster, thus taking the first step along an epic journey of conflict.

[Quick Transmigration + Strategy + Sweet Romance + Pregnancy + Scumbag Revenge]

Jiang Li, a workaholic in the entertainment industry, died unexpectedly. After her death, she was bound to the "Good Pregnancy System". As long as she goes to the Three Thousand Worlds to give birth to a child for the male protagonist who has no heir and inherits his hegemony, she can be reborn with 10 billion.

Jiang Li's initial response: "I can't even handle menstrual cramps, and now you want me to have a baby? Don't even think about it!"

Upon learning that she could receive 10 billion after completing the mission, Jiang Li exclaimed: "Help...help me up!"

World One: [A mad, childless tyrant vs. a delicate, weak eunuch]

The tyrant has been having a headache lately. He has discovered that he has developed inappropriate feelings for the delicate eunuch in the imperial study. Just as he is trying to follow his heart and be gay, he discovers that she is actually a woman.

Enraged, the tyrant cornered the 'little eunuch' against the wall.

World Two: [A Misogynistic Empress vs. the Wife of a Powerful Minister]

The emperor of the Great Yan Dynasty contracted a strange illness, forbidding any contact with the opposite sex except for the Empress Dowager. He thought he would live a lonely life forever, but unexpectedly, one day a soft, delicate woman bumped into his arms, stirring up ripples in his heart...

Juvenile Qin Chen, the star gate was taken, repaired as abolished, but it was awakened to the memory of the nine ninth, and opened the tenth journey of the sky. Wanjie is a book, I write a pen and write a thousand worlds. The hundred fields are mountains, my heart is the sea, and I walk out of the heavens. Hand Optimus, foot on the ground, this world, I am the emperor, who, dare not to accept?.com

The magical continent was torn apart by the divine beast, but was reborn by the divine beast! ! The treasure that various forces have been pursuing for many years has come to light, and a bloody storm is brewing... In the eyes of some people, he is a god who saves people from danger, while in the eyes of others, he is an evil god who kills people without hesitation. On this continent with spiritual energy as its origin, a generation of martial gods has emerged! ! !

The remaining soul of the great devil woke up in the ring after several years. The first thing he saw was that he was not dead, and the second thing he saw was the weak boy lying on the bed. Huh? No, the favored child of heaven fell from the altar overnight, was ridiculed by the family, his childhood sweetheart broke off the engagement, and there was a three-year agreement. What, who wrote this script? He actually became the golden finger for the good-for-nothing boy to rise against the sky? So the great devil smiled kindly and said, "Young man, I am your grandfather... No, no, no, I am your old grandfather." So this is the reason why the protagonist killed his harem, was exterminated by his father-in-law, his parents died tragically, his childhood sweetheart abandoned him, and became a star of misfortune? The great devil said that he would not take the blame. This is actually a