The movie tells the story of a little brother named Butterbread and a little sister named Blue Toadstool who are trapped in the world of the magic lamp. Because Mika's wristband is broken and they can't return to their original world, the three of them work together to repair the wristband and head towards the distant magic spring, but they quarrel constantly on the way. Can they overcome the difficulties and move forward courageously...? This is the first time that Yuko Oshima has challenged an anime voice actor since graduating from AKB48. Mika is a cute and energetic magic lamp spirit. Yuko Oshima herself is very energetic, and in the end Mika finally realized the "power of unity", and this positive attitude is also similar to Oshima. Coupled with the similar appearance of the two, Yuko Oshima stood out and took on this role.