21 Emon, heir to a 450-year dynasty of hoteliers, is bound by legacy to inherit his family’s Tsuzure Inn. Yet his true ambition defies tradition: he yearns to explore outer space. This dream drives him to secure a spaceship and depart Earth, leaving hospitality behind. Accompanied by Monger—a teleporting space creature—and Gonsuke—a potato-digging robot, he embarks on cosmic adventures. His narrative hinges on the tension between familial duty and personal aspiration, shaping his journey beyond the inn.