Sister group name: Soft hair twirling fingers This was a name with a profound meaning." Qingsi " represented the fate and bond between sisters, while " Rourou " represented the softness and affection between sisters. This name had a strong ancient aura and was very suitable for sisters. Sister's Name: Dream Token The name of this song,"Dream Song", was a poem written by the Tang Dynasty poet Li Qingzhao, which meant "dream-like music". This name not only had a beautiful language, but it also expressed the dreamy feelings between sisters. It was very suitable for sisters.