Mahou no Angel Sweet Mint

It is a girl named Int who also happens to be the princess of the magical and dream realm. Her world's natural environment is a reflection of the aspirations of people on Earth. It is now in jeopardy as people let darkness into their hearts and lose hope in their dreams. Mint's world's ecosystem is beginning to deteriorate and perish. She decides to travel to the realm of humans on her 12th birthday, following a lavish party with her mother and father, the King, to try to protect people's hopes and dreams and to demonstrate that she possesses the traits required to be a wise ruler. Herb, Mint's aunt, is Herb's sister and she owns a store on Earth called "Happiness Shop," where her father provides for her to remain.