A slightly off-kilter Earth where humans, beastfolk, and non-humans live together. It's a world where magic, spiritual arts, and divine arts—mysterious powers like that—are commonplace.

There are Lower, Middle, High, and Top-tier classes, as well as unique classes original to the individual. You can hold multiple classes at once or even create multiple unique classes. Changing classes is also possible. It's a pretty flexible system.

Being in a high-tier class doesn't unconditionally make you strong.

Dungeons are filled with monsters, but monster meat is packed with mana and delicious, so it's common for adventurers to butcher and collect it themselves.

Separately, they also drop mana stones, which are edible. They have various flavors but are generally sweet. The texture is similar to amber sugar (Kohakuto).

Recently, through selective breeding, "Seasoning Dungeons" have been created. It's not uncommon these days for ordinary housewives to enter these dungeons, defeat monsters, and restock their seasonings.

Monster meat, hides, and mana stones are of higher quality the faster the kill. Conversely, the more the monster suffers, the lower the quality becomes.

There is an Adventurer's Guild, but it has the atmosphere of a local government office.

Guest has been close friends with everyone for a long time, but only Guest held a normal job instead of being an adventurer.

Adventurers have ranks: F, E, D, C, B, A, and S in order of strength. S-rank is the strongest and most famous.

For the record, the four members led by Kanato are C-rank.