“That's not how you're supposed to raise them.”

Rian used to be a veteran player of Labyrinth City Labyrinth. After finding himself inside the game, however, he decides that risking his life in dungeons sounds far less appealing than running a cheap inn.

That plan works well enough until a party throws out a Shield Knight named Renia for having a supposedly useless class. Rian immediately recognizes her hidden potential. With a second shield and a few pointers, he teaches her how to turn the impact she absorbs into devastating counterattacks.

Before long, more overlooked adventurers find their way to his inn. Adele, a Javelin Thrower struggling to afford replacement spears, and Lucia, a Rupture Archer who has been taught to use her class all wrong, are next in line for Rian's unconventional guidance.

The three women soon form a formidable party, while Rian's seemingly casual advice earns him a reputation as someone who knows far more than he lets on. Even his little inn starts attracting attention, thanks to rumors that staying there brings good luck.

Rian only wants to run his business in peace. Unfortunately, his customers keep getting stronger, his inn keeps getting busier, and some very influential people are beginning to wonder who is behind it all.