My Classmate is 200 Million Years Old - Chapter 180

In a world fractured by conflict and haunted by shadows of the past, Kokushibo—the first Upper Moon demon—meets his end, only to awaken in a new life. Reincarnated as Crimson, a child born into a different family, he carries the memories of a past he cannot escape. Burdened by centuries of guilt yet indifferent to the present, he resigns himself to duty—until an unexpected bond with his newfound family begins to thaw his hardened heart. As he struggles between the weight of his past and the weight of the new life, Crimson must decide whether he will remain shackled to his former sins or embrace the possibility of peace.

Being able to learn any skill immediately, and just by raising its proficiency, stand at the summit.

He is the World Chef Association Honorary Chairman, having the title of the World Chef God.

He is the greatest composer, pianist, and conductor after Beethoven and Mozart.

He also has the title of Underground Racing King, Fist King, Gambling King, Giant of the Stock Exchange Market, Arm of the Industries and King of the Skies.

He who has a miraculous learning ability and can stand at the apex of all things if he so wishes for it, the Omni Genius.

- Description from Novelupdates

Adam Anderson’s world turned upside down after an accident landed him in a society where women ruled. Waking in the hospital, he found himself inexplicably married to his estranged childhood friend, Claire, a woman weighed down by a secret.But Claire’s secret came with a price. One that gave Caterina De Luca, Boston’s ruthless Mafia queen, the perfect excuse to force her way into Adam’s life.With Caterina tightening her grip and his marriage crumbling under the weight of unspoken truths, Adam faced an impossible choice: resist, or surrender to the woman who would stop at nothing to claim him.Women out number men 3:1 in the new world.This story is set in the same world as Finding a Yandere in Reverse World. You do not need to have read that story at all to enjoy this one.Discord link to get character pictures and updates easily.

The male student, Fukai Nagamasa, ignores his studies for college entrance exams in favor of following the path to chuunibyou. As he fainted during night cramming session before the exams, he realized that he was transported to a parallel world as a feudal lord in the Sengoku Era. Not to mention that suddenly, he was marrying the sixth Demon King, Oda Nobunaga’s little sister, the one who was purported to be an unrivaled beauty?