Oji-san to Akuyaku Reijo to Chika Meikyu

An F-ranked adventurer who always fails at everything he does is ordered to attack the underground labyrinth of the Holy Meteorite, which is said to have an achievement rate of 0%.

Then, a villainous young lady called Yukika's Daughter Knight, who was condemned in the royal capital, also sets out to conquer the underground labyrinth of the holy meteorite.

Can these two fateful encounters bring back the "mysterious relic" that is said to be hidden in the underground labyrinth of the Holy Meteorite?
It is up to you, the player in front of the screen, to decide whether or not these two can conquer the underground labyrinth of the Holy Meteorite.