Nobody knows there's an entire universe inside Catrina. There's Thunder Cat who dreams of fame, Angry Cat who hates everybody, Holy Cat who tries to be good, Silly Cat who believes in magic, and Baby Cat who won't stop crying.

Catrina knows how to keep her many parts hidden, and with Fun Cat in charge, the future looks bright. Then one dark night the universe falls apart. Turns out you can't outrun what's inside you. Can't spread your wings without exposing your heart. There are secret stories screaming to be told, and if Cat wants to survive, she must learn to listen to the stars.