I once saw an animation in which four little girls and a boy were in a glass bottle.

Aquarius goblin, a Japanese cartoon character, is four lively and lovely elves with bright eyes of red, yellow, blue and green. They jumped into the drift bottle and braved the wind and waves to come to this world with only one wish, to learn more about this world and to become human girls one day.

Knowing little about human common sense, they started a one-year training course at their teacher's home. After a series of happy, interesting and horrible adventures, they gradually grew up under the guidance of their teachers. This cute and funny animation has just been released in Japan. Because the four protagonists know nothing about human beings, they communicate, learn and make progress in the simplest language. Joining them can not only learn the purest and lovely Kawaii Japanese accent, but also learn about Japanese solar terms and human feelings step by step in 12 months, which is definitely worth it.