When Colaline moved into the ancient house, she felt extremely bored and lost.Her parents were busy with work and almost ignored her existence, leaving her alone in a strange and dull environment.Until one day, she discovered a hidden small door, behind which was a mysterious passage sealed by a brick wall. When it was late at night, she quietly walked through the dark passage and came to a seemingly perfect parallel world.People here use buttons instead of their eyes, but are gentle and considerate to her; her "parents" are full of care, and everything seems to be the realization of her inner desire.This world seemed to satisfy all her fantasies. However, when "another mother" invites her to stay in this world forever, Colalin gradually notices a trace of strangeness.She rejected the temptation and finally realized that this glamorous illusion was nothing more than a carefully designed trap just to trap her forever. In this battle between reality and illusion, Collarin not only has to face fear bravely, but also learns to cherish the meaning of true love and family.