Aster was once a cat from another world. After transmigrating, he became a starving boy on the scrapyard planet Cinder-9. He can see comments streaming in from another world—viewers he calls his "Aunties"—who guide him to save the badly wounded Second Prince Valen. Valen brings him back to the palace, grants him an identity and a title, and the two grow up together. Twelve years later, Aster learns he is not an ordinary orphan but Subject Seventeen, a survivor of illegal beastkin gene experiments. Valen's uncle Malrec is the mastermind behind the experiments and has been secretly searching for Aster. Together, Aster and Valen expose the truth, rescue trafficked beastkin children, and abolish the human experimentation law. In the end, the channel closes, and Aster accepts Valen's proposal, finally finding a home that truly belongs to him.
