This story is about a girl named Selena who accidentally meets a blue creature named "Ei". She first encounters him in her bedroom and although she considers him a scary creature, through repeated encounters with "Ei", she soon becomes friends with him.
With his strange and wonderful abilities, "Ei" takes Selena on an adventure in a mythical world where they encounter creatures such as fairies and magical animals. In this story, Selena does not leave the blue creature behind and despite all obstacles and threats, she continues to support her friendship with him.
This story delicately touches on themes such as friendship, hope, creativity, and adventure. Selena, as a representative of the real world, shows us through "Ei", who represents the world of fantasy, that our lives can always be filled with adventures that are our choice to participate in or not.