The Reincarnated Evil Dragon

A perpetually dissatisfied office worker, who constantly dreamed of winning the lottery, is reincarnated into a fantasy world as the most powerful evil dragon. Content with his new existence, he lives peacefully in a forest alongside a group of slimes who revere him. However, this tranquility is shattered when subordinates of the Evil King launch a surprise attack, brutally murdering his slime companions. Enraged by their deaths, he swiftly exacts revenge but chooses to leave the forest to prevent further casualties among those he cares for. Thus begins the carefree adventure of a once-weak, kind-hearted, and sentimental former salaryman turned formidable dragon.