Bird of youth manga

Bird of Youth summary:

Qing Chun, a canary, and Chen Di, a rooster, are holly birds that can take the form of humans. Chen Di has the job to wake the earth every morning whit his singing and Quig Chun is the one who eases everyone's heart with her beautiful songs. Pan Yi is the human Quin Chun felt in love with and just once she would like to be the one who wakes him up in the morning. She asks Chen Di to let her perform his job for enlist one day and in the end he agrees because he loves her, but things don't go exactly as planned for Quin Chun and somehow Pan Yi ends up finding her secret.