22nd century. A virus "Infoternum" has infected humans globally to the point where it has become uninhabitable even with hazard suits. A selection of humans have since been sent into space to take refuge in arks. Meanwhile, a group of robot staff lead by acting manager Yachiyo (also a robot) continues to keep Hotel Gingarou in Ginza...

It's the 21st century, Tokyo. Emon 21 aspires to travel outside the galaxy and go on adventures exploring space. However, his plan to sneak away on a cargo ship fails. After learning his long running family hotel business "Tsudzureya" was struggling and under threat of being abolished by rival businesses, he decides to focus on...