Years ago, in a old world, there was a grand war happening. It was between Earth and Nestasia. The war is still going on in the galaxy, up to this day. Meet Galaxy, a blue cat that can turn into a human, who lost his older sister at a cliff, when running away from Earth's soldiers. He is part of Nestasia. Meet Catyan, a pink cat that can also turn into a human, and her eye color can changes due to her emotion-but part of Earth. Both teenage cats meet, where Galaxy lost her sister, and become friends, without even knowing that both cats come from opposite sides. Can their relationship finally be something good in a world gone so terribly wrong?