Library of Feathers
John discovers an ancient book hidden in a forbidden library—written in crane language. Each page unlocks a location of a crane. The villain hunts them too, while the Cat Guardian silently tests Rina to see if she’s worthy of a secret power. The Male Guardian guards the library’s final door, revealing that Rina is the last mythical crane lost long ago—the one the powerful female villain has been searching for all this time.