Getting used to the long-term symptom, patients with light breast problems ignore the self examination and the risk of getting breast cancer easily missing the best time for treatment. Once diagnosed as breast cancer, patients would be shocked and depressed. Therefore they need sustained attention, in-time check and warm health care. Breath is an APP with a bra device for users with breast problems, giving users health plans and make long-term records. The fairies, whose changes are based on users" health data, are inspired by breast's structure and the appearance of each symptoms. They are so lovely that the process checking and learning about breast diseases are interesting.