Dai's on Diet Pri!
On the way to school with Ringo and Natsuki, Leila seems odd. She totters about while mentioning that her head is heavy and her shoulders are stiff. It's no wonder she feels this way as riding on her head is a plump Dai. His fatness has everyone surprised. As they comment on it, Dai pulls out a biscuit and happily devours it. It seems he isn't aware of it at all. However, Dai has become so fat that he can no longer fit into the dollhouse. Seeing Dai like this, Sei and Ryoku are angered as he is too pitiful for a Ma-Pet. After Leila also persuades him, Dai finally decides to go on a diet . Thus, Leila and Dai's Super Diet Plan has begun. Source: crunchyroll
Aired 30/01/2011EP 43 - Dai's on Diet Pri!

Spellbound! Magical Princess Lilpri
The Fairytale World is in trouble. Its princesses and their respective worlds are disappearing, causing a ripple effect in the human world where their stories are popular. In order to save the Fairytale World, the Queen sends three magic animals, Sei, Dai, and Ryoku, to the human world with magic gems to find three girls who can become the "Super Miracle Idols," the princesses Snow White, Cinderella, and Kaguya-hime. Those "princesses" end up being three little girls: Yukimori Ringo, Takashiro Layla, and Sasahara Natsuki. But the gems transform them into older singing superstars, and after their accidental debut at the singer Wish's concert, they become known as "Little Princesses," or "LilPri." Now they must collect Happiness Tones from humans in order to restore the Fairytale World.