Wagamama☆Fairy Mirumo de Pon! Wonderful

Synopsis

One day, Kaede and Milmo encounter a strange being. It is neither human nor fairy, but rather Tacos, an octopus-shaped robot. He explains that he is searching for the seven crystals scattered across both the human and fairly worlds. He has been looking everywhere for them and finally discovered they are in this area. However, he is exhausted. He asks if they will help him find the crystals. In confidence, he tells them that gathering all seven crystals will grant any wish. Because the story sounds too ridiculous, they initially refuse to listen. But Tacos pleads earnestly, so Kaede and Milmo decide to search for the crystals on his behalf. In return, Tacos transforms her fairly call into a fairly call crystal. This crystal has the ability to detect other crystals, and by combining their power, they can cast a session magic. What is Tacos's true intention? What is the real purpose of the crystals?