Unico: Black Rain and White Feather

Synopsis:

Unico is a unicorn with the power to make anyone happy. At one time, he was the pet of the Greek legend Psyche, but Venus, jealous of Psyche's beauty and and happiness, had Unico kidnapped. She tasked the West Wind to have Unico wander through space and time, alone for all eternity. Whenever Unico begins to make someone happy, the West Wind is supposed to take him to a new time and place. This time, Unico finds himself in a town where a recently-built factory is churning out pollution, and making the people and animals of the town sick. Unico encounters and is befriended by a sick girl named Tico. Can Unico repay the favor by saving Tico and the town?