망나니 1왕자가 되었다 | I Became the Degenerate First Prince | I Became the First Prince: Legend of Sword's Song | I Became the Rouge First Prince: Legend of Sword's Song
I Became the First Prince: Legend of Sword's Song is an action fantasy manhwa following Gruhon's rebirth into useless Prince Idrian Leonberg. Wielding ancient Mana Heart mastery and legendary dragon-slaying sword wisdom, he overturns court ridicule. Follow his relentless ascent in this thrilling royal fantasy where an ancient blade claims the throne!
