The year 2118... Four young astronauts head out to the stars to find humanity's new frontier...or so they thought! Two days after they depart, earth is devoured by a black hole! Plunged into a destiny they cannot escape, these unique young men reach their destination of Alpha Jumbro and plan to live out the rest of their lives there. How will humanity survive in this wacky space-survival comedy?!

Yusa Chiaki is a ordinary high-school student, whose motto is simplicity and frugality. Her favorite character is Uesugi Youzan. One day while going to search for a part time job she gets chased by kappas and a mysterious man rescues her. What will happen to her now?