Arifureta Shokugyou de Sekai Saikyou Prologue

An online motion graphic series that provides a comedic interpretation of events that have occurred in conjunction with the anime. Note: These episodes were originally posted on the series' official Twitter page on a weekly basis coinciding with the anime's broadcast, and were later included in the BD-BOX sets 1 through 3.

When a classroom of students is transported to another world to act as its saviors, Hajime Nagumo finds himself the weakest link. As his friends and classmates are granted strong classes and impressive abilities due to their existing skills, he is given the weak title of Synergist. When a dungeon quest leaves him separated from his group, Hajime must discover his own talents or be left to rot in this world forever.

After returning from the Sunken Ruins of Melusine, Hajime decides to take Myu on one last adventure before they part ways. However, the trip ends up being much more dangerous than they expected. Hajime and his party is transported to a mysterious ruined city, where they meet and join forces with the Liberators, who were also transported here from the past. They work together to return to their original worlds.

Unaired episodes included with the Blu-ray releases of Arifureta Shokugyou de Sekai Saikyou.