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There was once a man who was summoned to another world, and saved it. Of course, he became too popular there, and turned into an isekai-normie. However, that man fell into a "trap", and was forcibly returned to his original world. Moreover, he had to start over as a baby! This is the story of the way-too-fantastic ex-hero who lived as a gloomy high-schooler as he gets summoned once again to that other world in a very unexpected development!

From Lezhin: Tensions run high on the battlefield as soldiers fight through death. Bombs rain from the sky and bullets pepper the ground. In battle, beasts screech through the sky and tear through the earth. After the smoke clears, the soldiers return to their human forms weary from battle and numbed by death. But amid the explosions and chaos, a spark of passion ignites. Time will tell whether it can survive the horrors of war, or if it will succumb to it.

Thirteen years ago, suddenly the Villainous Army of evil appeared in their gigantic floating castle 10000 meters in the sky to invade Earth! The villainous army have reviving capabilities that make them immortal, making them a serious threat to humanity. To protect us against these invaders, the Divine Dragon Rangers, the Dragon Keepers, wield their miraculous powers and their weapons, Divine Tools, and continuously fight for our safety! The assault of the Villainous Army! The vigilance of the Dragon Keepers! Will they succeed in their conquest…? Find out in the action-packed superhero series of a lifetime! From Haruba Negi, the creator of 5Toubun no Hanayome.

Ragna, the heir to a frontier noble family, is a reincarnated former Japanese citizen who realizes that the world he now lives in is the setting of an otome game. Dreaming of a carefree life as an adventurer, his plans are derailed when a war takes his family, forcing him to take on the responsibilities of managing his family’s lands. Struggling with the unfamiliar duties of a lord, his already chaotic life takes another turn when an unexpected engagement to a noblewoman from a higher-ranking family is arranged. To his surprise, the bride-to-be is Alicia, the \"villainess\" of the otome game’s story — a character destined for heartbreak, a demonic pact, and ultimate destruction. Now sharing his life with someone fated for tragedy, Ragna is swept up in the wheels of fate. Can he rewrite the predetermined outcomes of this world and secure a peaceful life for himself and Alicia?

[web novel](https://kakuyomu.jp/works/16817139556027378071) (jp)

I returned from hell, after hundreds of years to save Humanity!

Neurologist Sejin discovers a man, Lee Taesoo, miraculously alive after a horrific accident—with a steel pipe lodged in his head. Seeing him as a perfect test subject, Sejin saves him, only to find Taesoo suffering from amnesia. In exchange for his recovery, Taesoo demands help in regaining his lost memories. But as Sejin observes his unnaturally fast healing, strange phenomena begin to unfold, setting off a series of unpredictable events.

In the flashy building, people's desires are running rampant, and the laws of heaven are almost destroyed. Suyou, a brothel girl, received a female guest officer. The female guest officer gave her a sum of money to redeem her life. She also claimed that she could know the future and hoped that Suyou could help her save the common people...+