Web Novel

The Web novel Mushoku Tensei was written by Rifujin na Magonote. It is currently finished, there are 25 volumes written by the author in his website and 22 volumes (published) printed out by KADOKAWA / Media Factory that cover so far until the Chapter 6 of Web novel 22.

Redundancy
Side stories that happens after the events of WN vol 23.

Jobless Oblige
Side story about Sieghart Saladin Greyrat, chronologically this story happens between the redundancy chapters "Nanahoshi Gourmet" and "The Last One to Leave the Nest".