His Obsession Began After Losing Her - Chapter 27: Broken but Unyielding

Aomori, who has a monster-fighting system, came to the world of One-Punch Man and gained the ability to enter various instances.

Therefore, “Founder of the Hero Association”, “NO. “And other titles fell on him one after another.

Comprehensive flow, the main world One Punch Man.

Completed dungeons so far: Pokémon – Demon Slayer – Sword – Pokémon – Digimon – Spell Return – Yokai Comprehensive World (Girls that Noragami Inuyasha can see, etc.) – Pokémon – One Piece-re0-Dragon Ball wait.

- Description from novelbuddy

After the ‘100-Year War’ between the Necromancers and Priests, an all-time genius who’ll shake the power structure was born. “Am I a rare case or something? Do I have talent?” A potential beyond all imagination. He obtained his father’s undead army and entered the great Necromancer school of Kizen that divided the continent. Geniuses are geniuses, even when gathered among the elites. The research community was flipped on its head by the appearance of a new case. Professors wouldn’t leave him be alone, wanting to make him study directly under them. Officials from all over the kingdom and heads of organizations fidgeted over whether to scout him. “Professor! When can I make a Lich?” “Gimme a break. How talented are you? You’re crossing the line, honestly.” A genius among geniuses had appeared.

(Warning: Mature Content - R-18)The Ultimate Heartbreaker Reincarnates, Only to Find Himself a Pathetic Pushover?In his past life, he had gone out of his way to win their affection, humbling himself to the point of self - annihilation. But how did they repay him?His first love abandoned him for a wealthy heir, mocking him as delusional and naive.His childhood friend despised his devotion, pretending not to recognize him when they crossed paths.And the queen bee of the school? She sneered at him, refusing to even glance in his direction.But now, the man has been reborn—cold, detached, and effortlessly commanding both power and allure. Women fall under his spell without hesitation.Until one day—His first love appeared before him in a slinky strapless dress, her eyes shimmering with tears, her voice trembling: “Please… give me another chance, Master. I’ll do anything you ask…”His childhood friend was pinned against the door, her breath uneven, her gaze filled with desperate longing: “Master, even if it’s just as your secret lover—I’d be willing…”The once - arrogant queen bee shed her coat, leaning close to whisper in his ear, her breath warm and shaky: “Master… please, let me make it up to you…”He let out a low chuckle, his long fingers trailing over their heated cheeks, his eyes glinting with mockery and disdain. “You want me now?” he murmured, his tone icy. “Too bad. You’re too late.”

The protagonist is an accidental time traveler - he didn't wait, didn't guess, only dreamed, but ended up in history, which he didn't pay much attention to. He was just lucky with his lineage.Ryo is a new member of the Nara clan, from the Uzumaki lineage on his father's side, and it so happened that he was born not at the beginning of the known plot, but more than three decades and two world wars later. Now he has to figure out how to get out of this situation however he can.