姐妹一生一起走谁先背叛谁时狗
[jiĕ mèi yī shēng yī qĭ zŏu shéi xiān bèi pàn shéi shí gŏu]
This name, meaning roughly 'If one betrays, they are a dog: friends through life and death', expresses a pact between sisters (in a broad sense including close friends), vowing eternal friendship and loyalty to each other.