The autonomous robot staff of the Gingarou Hotel, led by concierge Yachiyo, as they maintain the deserted hotel in a post-human Earth. After humans evacuate due to a toxic environmental contagion, the robots wait for their return, until alien guests, starting with an extraterrestrial visitor and then a family of tanuki aliens, begin to arrive. The season explores their adaptation to serving alien clients, the humorous and sometimes melancholic challenges of their duties in a world without humans, and the evolving relationships between the robot staff and their new, non-human guests.

5岁女孩莉萝在姐姐的帮助下收留了一只流浪狗，她给这只狗起名叫史迪仔，并希望史迪仔能够给自己的生活增添一份乐趣。但是莉萝万万没有想到的是，史迪仔并不是可怜的流浪狗，而是来自外星球的长着六支脚的危险分子，只是在流放中偷跑到地球上来的！为了在地球上隐藏身份，史迪仔只能“忍辱偷生”，把自己的两只脚藏起来，让自己看起来像是一只狗，在和莉萝相处的日子里，小女孩的善良单纯让她和史迪仔成了形影不离的好伙伴。