Kotone, Rufuria and Fa go on a business trip to the Dark Lord's Castle. Their boss, Satona, has plans for properties in the area.

A young woman visits RPG Real Estate, looking for a property that she can live in with her pet. However, the pet isn't exactly the type one usually keeps in an apartment.

Kotone is stumped. She needs the coworkers' help to figure out how to find tenants for a mysterious house. After that, she takes a vacation to visit her family with Fa.

The team is one deal away from meeting their monthly goals. They are approached by a property owner who owns a hot springs inn.

With the help of Toto and her pegasus Shiro, Kotone is able to catch up with Fa and save her. Can they stop the rampaging dragon?

Under the control of a mysterious magic, Fa, in her dragon form, strikes Kotone. The impact appears to be fatal.