Vilém has built a unique vehicle, a velomobile for a whole family, who sadly rejects it.
Now he is on journey in his velomobile, but gets mysteriously transported into another world without knowing how and why. The environment is hostile and danger looms from vicious monsters. But he also meets three adventurer girls of different species, the sole survivors of their group. Will they get to work together to escape the hostile monsters and survive the dangerous wilderness? Can they reach the human kingdoms and warn the people of the imminent threat that could to destroy all lands of mankind?
And how will Vilém find a way back home? Does he even want to return?