Read Manhwa I Became the First Prince: Legend of Sword’s Song online in English. Also known as I Became the First Prince, I Became The Rogue First Prince, Ego Sword Became a Villain Prince, Mangnani 1-wangjaga Doeeotda, and 망나니 1왕자가 되었다.

After spending centuries as the legendary magic sword Gruhorn, a proud blade that once passed through the hands of heroes, the protagonist suddenly finds himself inside the body of a fifteen-year-old first prince. Unfortunately, this prince is infamous for being spoiled, weak, and utterly unworthy of the royal blood he carries.

Now trapped in human form, Gruhorn has to rebuild a ruined reputation with nothing but old battlefield memories, brutal discipline, and the pride of a weapon that remembers true greatness. In a kingdom shaped by knights, nobles, war, and inherited legends, his second life becomes a sharp struggle to turn a disgraceful prince into someone worthy of history.

This series may appeal to readers who enjoy reincarnation fantasy, swordmaster growth, and royal power struggle stories.