Rud is a tank, the member of an adventuring party that protects the others by soaking up attacks. When he is kicked out of his party for losing his absorb shield too quickly on a labyrinth raid, he considers what his next move should be.

Rud returns to his hometown of Avancia with Luna in tow and reunites with his sister, who quickly takes to the new addition to the household.

Manicia worries that her illness has prevented her brother from pursuing a more rewarding path in life.

A fearsome chameleon kong is sighted near Avancia, and all the fighters in town band together to take it down. But where did it come from?

Rud teams up with some old faces to tackle the Avancia labyrinth in the hopes of defeating its formidable guardian to finally attain the Secret Treasure of the Labyrinth.

After making a powerful new ally, Rud is given a crash course on how to manage a labyrinth. Meanwhile, his newly formed clan is struggling with all the demands being placed on it, so Rud decides an alliance with other clans is needed.

Rud has impressed the leaders of the two major clans in the region by talking the talk, but in order to get the alliance with them that he desires, he now must walk the walk by tackling the forbidding Keild Labyrinth.

After a successful first raid on Keild Labyrinth, Rud's party returns the following day for a second attempt at clearing it, but they soon find themselves fighting extremely powerful monsters in dangerous uncharted territory.

The battle with the guardian of the Keild Labyrinth commences, but have Rud and his party bitten off more than they can chew?

Rud is reassured that his sister Manicia is doing better again. But when an injured girl appears in Avancia, he finds himself caught up in a conflict between two groups of homunculi.

The homunculi finish construction on the town's new public baths and the adventurers plus Rud and his clan are the first to try them out. Meanwhile, a new threat rears its head on the horizon.

With Avancia's fate hanging in the balance, the final battle between Rud's party and the demon king known as Greed begins.