MTL - The Two-Faced Side Character Fantasizes that I Love Him Everyday - Chapter 20 punch

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- Description from Novelupdates

Synopsis below:How did the Avatar universe change when a transmigrant appeared in an unknown village, long before the canonical events? And how are the two islands Kyoshi Island and Uzushiogakure no Sato (A village hidden in the maelstrom)?---Tags: AU, Before-canon, Post-canon, Violence, Death of major characters, Transmigration, Harem, Children, Incest, Romantic. Foul language.

After experiencing heartbreak from being abandoned, he enlisted in the military.

And then, he became a war hero.

“Xavier Lancaster, the richest and most influential man on Earth, lives by one simple motto: 'Money First'. A brilliant strategist, ruthless businessman, and master negotiator, he built an unshakable financial empire. But when a mysterious incident transports him to a medieval world on the brink of collapse, he finds himself… the ruler of a weak and crumbling kingdom.Faced with corrupt nobles, hostile neighbors, and a shattered economy, Xavier decides to use the one thing he knows best: the law of the market. Armed with his cunning, modern strategies, and cutthroat business sense, he turns every problem into an opportunity and every enemy into an investment.His goal? To become the richest and most powerful emperor this world has ever seen. But in a land where strength rules and magic exists, will money really be enough to buy everything?Get ready to witness the rise of a man who’s ready to put a price on the throne itself.”