The Eight-Year-Old Patriarch Return of the Supreme Mage

Supreme Mage Merlin wakes after a century, turns the Hell King into a goat mount, and returns home. His family is being destroyed by the Malphas family. He lifts his sister’s curse, defeats the three-headed hellhound, and begins his counterattack.

Reelife released it as 61 bite-size episodes mixing revenge, werewolf and fantasy, made to watch on a phone in one sitting or a few.

The draw here is the slow build to a payback that lands hard. On top of that: pack politics, mate bonds and a heroine who refuses to stay small.

At roughly 1–2 hours in total, it's quicker to finish than most full-length series.

Start from episode 1 below; autoplay takes you to the next episode when one ends, and nothing needs a sign-up.