After Thrain , Rose’s father died, Mavuika , who 10 years was in depression, decided to marry Zhongli, her childhood friend . Rose and Xiao was happy, sinse they also was childhood friends, so become step-siblings would make them closer Mavuika:I never thought I’d marry again.. Rose:And I never thought I’d see you smiling again Mavuika:Dear.. You not angry that I again marrying?