[Invincible + System + Regret + Multiple Heroines + Love Triangle]

In a world of high martial arts, one awakens a villain role system, enabling them to travel to other worlds, play the role of a villain, and extract the talent for playing a villain after completing missions.

...

Task 1: Play the role of the chief professor who killed the female lead's family, take in the female lead as his disciple and carefully train her, but ultimately be killed by the female lead when the truth is exposed.

"My beloved teacher saved me, but I killed him."

Task Two: Play the role of a simp who is unrequited love, fawning over the female lead and framing the male lead, only to be forcefully killed by the male lead in the end.

"Only when you lose something do you realize how precious it is. It turns out that my senior brother is to me what water is to a fish."

Mission Three: Play the role of a remnant of the Sin Clan who infiltrated the academy with the intention of breaking the Sin Seal to release the Demon Sword, but is executed after his identity is exposed.

"It's all our fault. If only we had trusted him a little more... He's not the sinner, we are."

Task Four: Play the role of a powerful hegemon in the Spring and Autumn and Warring States periods, who waged wars to conquer other states, only to die at the hands of his concubines.

"He was a tyrant, but also a wise ruler, and we destroyed this peaceful and prosperous world with our own hands."

Mission Five: Play the role of the mastermind behind an evil organization, relentlessly pursued by the protagonist group, and ultimately sacrificed for his great cause.

"God and demon, good and evil, I can no longer tell the difference..."

...

Behind every mission lies the truth of the world.

Unaware of the truth, Luo Chuan returns to the world of high martial arts with his villainous talents.

The heroines who remained in their original worlds couldn't help but shed tears of regret upon learning the truth.

Sun Baihe time and again traveled through time, searching for his way home. He had once teamed up with Asuna in Sword Art Online, their combined swordsmanship reaching the top of Aincrad; he had also used his 3D Maneuver Gear to slice through the nape of a giant's neck in the world of Attack on Titan; he had studied magic at the Clock Tower, only to be unexpectedly swept into a time warp, returning thousands of years to teach Artoria how to govern; he had shared drinks with Whitebeard, and later single-handedly conquered Mary Geoise, the holy land of the Celestial Dragons, ending their rule; he had debated swordsmanship with Retsu Unohana, experienced Sosuke Aizen's Kyoka Suigetsu, and dominated the world of Bleach, seemingly undefeated; he had even been slammed in the face by the White Tyrant, and became friends with her… After countless hardships, he returned to the main world, exhausted both physically and mentally, becoming a lazy bum who only wanted to rest for a few hundred years. But unexpectedly, the sixth wave of spiritual energy revival opened countless dimensional portals. Seeing familiar faces on the television screen, Sun Baihe shuddered. "Damn it, the debt collectors are here!"

(Even if you haven't read the original work, it won't affect your viewing experience (*¯︶¯*) + Fanfiction + Time Travel + Slice of Life + Personal Settings + Multiple Female Leads + The System is One-Time Use + The Main Character is Quiet and Slightly Introverted + Not an Invincible Character!!! + The Plot Has Been Changed and Will Be Different from the Original Work)

[The author updates with at least 4,000 to 10,000 words daily, so feel free to add it to your bookshelf and enjoy it every day!!! Please give it five stars! Please give it a good review! Please urge me to update! (///▽///)]

A recent college graduate from Blue-White Star is unexpectedly transported to the world of *High School DxD*, inheriting Taoist traditions and becoming the "Taoist Advisor" of the Occult Research Club at Kuoh Academy. He integrates talismans, formations, and Eastern wisdom into the conflict between demons, angels, and fallen angels, gradually winning the trust and affection of Rias, Akeno, Asia, and Koneko. In this perilous otherworld, Li Chun leisurely practices his Taoist path, protecting his companions, ultimately uncovering his own destiny and finding belonging and true love.

This is a journey through another world where Taoist magic and sorcery intertwine, and a symphony of fate where warmth and battle coexist.

Exorcist master Lin Qiansheng transmigrates to a crossover anime world and is adopted by the Touka family. After growing up, he transfers to a new school. A whole wave of crossover anime heroines attacks Lin Qiansheng! There's the beautiful aunt Kurashiki Reika who wants to kiss him within five seconds of meeting, and the cold and aloof witch Tsukishima Kyoko as his homeroom teacher! The baseball club manager is Nanao Akane, and his landlady is Asou Miyuri! The class president is Shiina Chizuru, and his classmates include Murasaki Natsuha and a trio of gal girls! There's also the silver-haired beauty Yuki-onna Yukino Fuyuki, and a school called the Private Seika Girls' Academy... But this world has been invaded by evil spirits, and minotaurs are everywhere! As an evil spirit slayer, minotaur nemesis, and exorcist master, Lin Qiansheng will defeat these evil spirits one by one, thwart the minotaurs, exorcise demons for the heroines, and protect pure love!

[Villain][Wei Wu][Plunder][Fierce][Empress] Cao Meng, courtesy name De Meng, is a villain whose destiny is to help the chosen one take care of his beloved's family... A super swap and plunder system allows him to plunder the chosen one's talents and opportunities. ...

[Multiple female leads] [Invincible protagonist] [Pure and satisfying] [Non-Japanese male lead]

Lu Ming, from the world of high martial arts, obtains a system that allows him to travel to anime worlds. He can obtain different rewards by conquering these worlds.

However, these anime seem to be somewhat niche...

For example, "About My Brother and I Living Together in a Small Town."

Or, "My Devil Club Story is Really Problematic"

Or perhaps, "The Story of the Tsundere Student Council President and His Naturally Dark Twin Sisters"

Yao Jia probably never expected that hitting the jackpot would actually damage his soul.

Countless fragments of souls, carrying Yao Jia's essence, crossed dimensions and were reborn as familiar or unfamiliar two-dimensional beings.

After retrieving the reincarnated soul fragments, Yao Jia, as the main body, could directly resonate and gain power, but unexpectedly, all the clones were of the opposite sex...

Huo Yuxi: "Can a mere God Realm withstand a punch from me, a being of stellar level?"

Liu Ou, "Comprehend the laws of space? Would you like to see my spatial authority?"

Kiana: "All tragedies crumble before 'me'!"

Yao Jia some time later—

"Was I really this narcissistic?"

My wife is so beautiful! (×)

I'm so beautiful! (√)

[Characters appearing include characters from Honkai Impact 3rd, Star Iron, Grand Blue, Oregairu, Kaguya-sama: Love Is War, and Saekano... as well as some heroines whose origins are unclear. I won't cite their sources; those who like these series will understand.]

Don't worry, it's not some cuckolded turtle.

Multiple female leads, crossover anime, no eunuch ending, protagonists lacking any true goodness or beauty.

While traveling through various anime worlds, Tetsuya Amano unexpectedly discovers that all the female protagonists have a treasure chest with a progress of 0% above their heads, which triggers his obsessive-compulsive disorder!

The key to open the box was actually on the male protagonist.

To control them and their lives.

Tearing apart Aki Tomoya's dignity and publicly humiliating Hikigaya Hachiman.

When Aki Tomoya knelt at his feet, when he treated the Service Club like a playground...

The first world learning city

After watching two seasons of the "Academy City" anime, Wang Huan felt unsatisfied and went to read the novel. He got so angry at the ending that he had a heart attack, but unexpectedly obtained a system and was transported to the world of "Academy City"...

A lighthearted story with slice-of-life elements.