人間の世界にお邪魔しにMIU星からやってきた兄弟。しかしその兄弟は、背後でエクソシストのように悪霊に取り憑かれ身体が浮遊する人間と、手に負えず祈る事しか出来ない神父がいてもお構いなしに、誕生日会を開催する。きっとこれくらいの人の目を気にしなければ人生はとても楽しい！

Brothers from the planet MIU have traveled the universe to visit the world of humans on earth. But the brothers organize a birthday party for the eldest brother without any regard for the floating human who is possessed by an evil spirit or the priest who has nothing left but to pray in the background. Surely life would be so much more fun if we could live without so much as care about what people think of us!