Reformation of the Deadbeat Noble

Alternative:

The lazy prince becomes a genius / 나태 공자, 노력 천재 되다

Irene Perreira is a boy who sleeps to run away from reality. People mocked him, calling him a ‘deadbeat’, but he had no wish to change. Until one day, he dreamt of a swordsman… It was a dream about a talentless man who had been training by swinging his sword for decades.