The ending of "Anime Comet Princess" or "Musical Comet" is as follows:

The male protagonist Yasaka Kazu and the heroine Comet Princess finally come together. At the end of the story, the Comet Princess dedicated her life to protecting the earth and turned into a shooting star, and Yasaka decided to follow her to the universe.

In the universe, Yasaka Kazu and Comet Princess met and traveled together. They eventually built their own home on an unknown planet and lived together. Although Comet Princess has turned into a shooting star, her power still exists, and she uses her power to protect the planet and Yasaka.

In the ending, the audience can see Yasaka and Comet Princess living together on the planet, and their lives are full of happiness and joy. Although the Comet Princess is no longer on Earth, her presence and power still have a positive impact on the Earth, and she has become the guardian of everyone on the Earth.

As for what happened to the male and female protagonists, they lived a happy life in the ending, relying on each other and facing various difficulties and challenges in life together. Although their love story is somewhat unusual, in the ending, they prove that true love does not distinguish between race and identity. As long as two people truly love each other, they can overcome all difficulties and come together.