U

Mona is a sad princess who lives in a castle by the sea. One day an adorable unicorn named U appears and declares that she is there to help Mona find happiness. The two become inseparable and U introduces Mona to a whole new world - full of joy and adventure. Soon Mona discovers the wonder of music and develops a budding attraction to a young guitarist. But this creates a big dilemna for U... What will happen to her if Mona finds the missing happiness which was the sole reason for U's existence?