Be The Superheroes' Father in Marvel X DC universe

A CYOA self-insert sounded fun. Until I woke up in the Naruto world mid–Third Shinobi War. Turns out "fun" is code for "suffering."

Kazuto died holding a manga. He reincarnated holding a weapon. Waking up in the year 2157, Kazuto Ryuu finds Earth on the brink of extinction. For ten years, humanity has been losing a brutal war against the Void Legion — monstrous alien invaders that tear through conventional military forces like paper. Cities are falling. Governments have collapsed. What remains of civilization survives under the iron grip of the GDA, a military alliance more interested in maintaining power than winning the war. Kazuto is nobody. An orphan. A low-ranking drone technician with no combat training and no future worth speaking of. Then he touches a black crystal fallen from a dying alien — and everything changes. "MILITARY TECHNOLOGY SYSTEM — ACTIVATED." With a blueprint-based crafting system capable of designing and producing any military weapon imaginable — from a pistol built out of scrap to a full-scale aerial warship — Kazuto transforms from a civilian with nothing to lose into humanity's most dangerous asset. But the deeper he goes, the more he realizes the truth: the Void Legion isn't here to conquer Earth. They're here to take back something humanity stole from them. And the system in Kazuto's hands is right at the center of it all. Caught between an alien invasion, a corrupt government, and a conspiracy older than modern civilization, Kazuto must do what he does best — build, adapt, and refuse to go down. One blueprint at a time.

Dive into a provocative collection of standalone oneshots that explore the tantalizing theme of forbidden desires. Each story delves into the secret longings and passions that simmer beneath the surface, featuring complicated relationships, unexpected encounters, and the allure of the forbidden. From passionate workplace romances to clandestine liaisons that defy societal norms, these tales invite readers to indulge in their wildest fantasies. With richly drawn characters and steamy encounters, each oneshot uncovers the thrilling consequences of desire—where passion knows no boundaries and every encounter leaves an unforgettable mark. Warning: This collection is intended for mature audiences and contains explicit content, exploring adult themes of lust and seduction. Reader discretion is advised.

Vivia’s dream was to become the Maestro - the pinnacle of dance. But both her dream and life ended with a single arrow through her heart. She surrendered to death, only to awaken as Clairette Emberlain, the viciously murdered royal Princess of the Human Realm. As if that wasn't enough, she came face to face with the greatest archenemy of humans - a demon. Not just any demon but the Demon Crown Prince, Zerath Rudaheim himself. With Clairette's life still in danger, she was left with no choice but to seek refuge in the Demon Realm. But… Amidst centuries of hatred between humans and demons, Vivia and Zerath found themselves falling in love against all odds and enmities. A forbidden love where the only mercy they could hope for was death. Yet Zerath vowed - “I will make you my bride one day.” But unknown to them, something far more dire than their forbidden love lurked in the shadows that threatened the existence of their realms. A conspiracy that fed on this very ancient hatred to bring the world to its doom. With a love that could burn Vivia and Zerath into the depths of fiery hell, will they choose their future or will duty eventually triumph? Will their love be the salvation or a spark that would ignite another war between their worlds? Cover art: @vatarison.art

Fredy lived an ordinary life—until the day he died. After a sudden accident ends his mundane existence, Fredy awakens in a completely different world… the world of Marvel. Reborn as a young man named Fredy Parker in Queens, New York, he soon discovers that his second life comes with an extraordinary gift: the **Multiversal Template System**. This mysterious system grants him the power to inherit abilities from legendary characters across countless universes. His first template is none other than the Shadow Monarch, **Sung Jin-Woo**, giving Fredy control over the power of shadows and the ability to command an ever-growing army of shadow soldiers. In a city already protected by heroes like Spider-Man and monitored by organizations such as S.H.I.E.L.D., Fredy chooses to operate from the darkness—hunting criminals, gathering shadows, and steadily increasing his power. But the Marvel Universe is far from simple. As Fredy grows stronger, powerful figures begin to notice him. Heroes grow suspicious of the mysterious shadow user appearing across New York’s crime scenes, while villains see him as either a threat… or a weapon worth capturing. Meanwhile, the system continues unlocking new templates from across the multiverse, granting Fredy abilities that defy the limits of this world. With enemies rising from the streets to cosmic battlefields, Fredy must decide what kind of force he will become. Hero. Villain. Or something far more dangerous. Because in a universe filled with gods, aliens, and superhumans, one new power has begun to rise from the shadows… And the entire multiverse will soon feel its presence.

[Joyful and Heartwarming + Happy Ending + Sweet Reversal + Friendship Subplot - Super Sweet and Easy to Ship] After losing his memory, "it" becomes the villain Sukuna, and thus *Jujutsu Kaisen* transforms into a healing anime! **[Fan Fiction about the Anime "Jujutsu Kaisen" - Even Those Unfamiliar with the Original Work Can Enjoy It]** *(The warning is at the end~)* --- **Copywriting:** Having lost its memory, it assumes the identity of the villainous boss Sukuna and begins to play the role of the imagined King of Curses. Breaking curses, saving teammates, cooking—doing the most loving things with the most terrifying identity! Itadori, Fushiguro, Nanami, Gojo, Zenin Maki... all the friends who were originally going to disappear or were already gone have been rescued! A different Sukuna begins a different kind of joyful daily life~ --- **Itadori:** Did you know that the amnesiac version of Sukuna is a really nice person! **Gojo:** This Sukuna is really... completely different from the records~ (Quickly turns back to school!) **Everyone else:** Help! This Sukuna is so adorable!! **Sukuna:** Hmm! Today is another day to do my best as the King of Curses! --- **Lightning Protection:** 1. Regarding the lack of a romantic pairing: There is no romance in the main story, but there are some scenes where you can ship couples (although they are fictional). The interactions between all the characters are incredibly heartwarming and sweet (no romantic pairing = you can ship any couple you want). 2. The main character is not Nagato Shinjuku; he appears later in the story (in the Millennium Arc). 3. Maki will occasionally be the author's voice double, and there will be out-of-character moments during these times (apologies to Maki-nee). 4. Sukuna is not related to Sukuna in this book (the relationship was only revealed in the original work after the plot was completed). I was so badly hurt by the original story that I wanted to write a fun and adorable Sukuna character from the living world~

[Darkened Spider-Man] + [Decisive and Ruthless] + [Devoted to Body Enhancement] + [Endless] + [No Female Lead] Traversing endlessly through worlds, Alex Reed acquires NZT-48. After permanently unlocking NZT-48, he believes he's reached the pinnacle of life. But an unexpected accident transports him to the Marvel Universe. This time, Alex is willing to pay any price to survive! He deliberately aids in Uncle Ben's death, giving rise to a Spider-Man who shatters the no-kill rule! He plunders and modifies, fusing countless mutations into one ultimate form! Lizard serum... Luke Cage's unbreakable skin... Abomination serum... Deadpool's infinite healing factor... Symbiote... Green Goblin serum... Life is short—flesh and blood must ascend! Peter: After Uncle Ben's death, Alex is the one I need to follow for the rest of my life!

A modern-day beauty, Luna, is transported to the world of One Piece. A story of freedom and adventure unfolds, and she decides that since she's here, she's determined to make a name for herself. Who says women are inferior to men? She'll become the new queen of this world! At the start, you gain access to the system's power, receive a beginner's gift pack, Greeza's power template, and awaken three types of Haki. At the same time, her identity is also quite extraordinary. Recruiting crew members from the original One Piece world, including Kuina, Carmen, Kaya, Nojiko, and Uta, who did not die. The summoned companions from another world are Galactron MK2, Platinum Rumble, Asada Shino, Tatsumaki, Dia, Lilimon, and Diancie. All-new power, and even original partners, are here. Starting from the East Blue, defeat all enemies, become the fifth Emperor of the Sea, crush the Marines, destroy the Celestial Dragons, punch the Five Elders and Im, and finally dominate the pirate world. To become a world queen admired and worshipped by thousands. Red-Haired Shanks: "The Sister Pirates? How interesting. Uta is all yours then." Usopp, Sanji, and Nami: "Kaya/Carmen/Sister, what's wrong with you...!?" Vegapunk: "I'm shocked. My research abilities are no match for a teenage girl." Sengoku: "Why is this pirate crew, composed entirely of women, so strong?" Garp: "You're his granddaughter, aren't you?" Luffy breathed a sigh of relief: "Thank goodness, Rosamund Kwan isn't going to steal my title as Pirate King." Among the Five Elders, Im cried out in despair, "Can anyone tell us how to fight the Void?"

To escape a poisonous snake, Milo Hartley must beg a lion to save him. Milo is cursed. Since he was seven years old, he has seen the exact day people will die. After his family died in an accident he predicted, he was sold to the Hartley family as an omen of bad luck. For twelve years, he lived as a toy for the sadistic Nero Hartley, enduring constant humiliation. Now, Nero is trading him to Salvatore Portello—a ruthless Mafia boss who just killed his own uncle to take the throne. To escape Nero’s obsession, Milo risks everything. He kneels before Salvatore and begs for protection. Milo doesn’t know which is more dangerous: the snake or the lion. But now, both have claimed him—one with a dark obsession, the other with a lethal protection. Warning: Dark mafia romance contains graphic themes of physical abuse, extreme humiliation, and violence. Reader discretion is strictly advised.