After the little magic fairies Xia Letong, Yan Keke, Bai Yinyue and Si Qi noticed the abnormal movement of magic energy, they took the Star Dream Moon Boat to the Realm of Fantasy Night. The villain here, Ye Luo, was sealed in the Star Tower because he attempted to dominate the Fantasy Night Realm, and the dark power he controlled was still at work. When the four little demon fairies fought against these dark forces, they were recognized by the Star and became the guardians of the Star. After going through trials, they awakened the power of the Obsidian Star, and also formed friendship with the brothers and sisters Xingshuo and Xingyu in the Fantasy Night Realm. However, when everyone joined forces to fight against Ye Luo, they accidentally fell into the opponent's trick and accidentally released Ye Luo from the seal. From then on, the fantasy night realm fell into a greater crisis.
