Space Three Musketeers

Original title: 별나라 삼총사

Three young children are fascinated by space. One night they saw a flying object crashing into the forest. Ruru, the king of the children of the kingdom of the space is on board. Ruru invites the three musketeers in his realm of space. During this journey, a terrible battle began in space to destroy the enemy in the middle of a meteor shower.