Dragon Quest: The Adventure of Dai

After the liberation of Papnica, Dai was asked by a certain boy to become his apprentice. After a few days of training, he heard rumors that there was a hero who learned Avan-style techniques, so he went to meet him hoping to learn and become stronger. Dai struggled under the guidance of an unfamiliar "master'', but...!?

A Dragon Quest: Dai no Daibouken spin-off focused on the past of Avan.

A manga that is essentially the story of Enix from the time it starts working with games, until its release of the series it became known for, Dragon Quest. All the characters are real Enix employees at the time. You get to see the developers as real people, who agonize over everything, like how big to make the text boxes, what should NPCs say, etc, as well as how they get along with each other.