三年级小学生小米有许多烦恼和愿望，他独自对着星空许下心愿，被偶然路过的流星型宇宙人阿呦听到。阿呦拥有在各个星球之间自由来去的能力，可以帮助别人实现不同的愿望。小米把阿呦当作伙伴带回自己的家。从此，三年级小学生小米的生活开始变得非常有趣，阿呦通过自己的在星际间瞬间移动的能力，寻找各种各样神奇的道具，不断帮助小米实现各种心愿.mi, a third-grade elementary school student, has many worries and wishes. he made a wish to the starry sky alone, and was heard by a yoo, a meteor-shaped universe man who happened to pass by. the two became friends and opened a magical story.