Fushigiboshi no Futagohime Gyu! is the sequel to Fushigiboshi no Futagohime.
Opening song is Kimi no Ashita performed by FLIP-FLAP.
The second ending is Churuchu Rock! performed by Wonder☆5.
Fushigiboshi no Futagohime Gyu! is the second season. In this season, all the princes and princesses from the Mysterious Star leave to intend to the Royal Wonder Academy of Education on the Royal Wonder Planet. Princes and princesses from all planets around in universe come to receive a diploma needed to have the qualifications to become kings and queens in their respective home planets and kingdoms. Upon arriving at this school, Fine and Rein's un-princess-like actions cause them to violate school regulations and lose points. During the orientation of the first year students the vice principal presents a legendary
bell, the Soleil Bell, that only rings when a certain person touches it. If the bell rings the person will be chosen as the Universe Princess. No princess has ever rung the bell for years. When Fine and Rein accidentally fall and touch the bell it finally rings again and transforms them into Universal Princesses as well as gives them each a little angel partner (Fine gets Pyupyu and Rein gets Kyukyu).
Strange situations have also been occurring in the academy. A dark entity comes out and forces everyone to become depressed. When someone resists the dark entity sends monsters that cause lots of damage. One of the first people to become possessed under this entity is Toma the vice president of the student advisory.
- Junichi Sato, who directed the first season, left sometime between the first and second episodes of this season. He would only return to help direct a few episodes of the season: 16, 41, 45, 50, and the finale 52.