Time Travel: Redemption from Another World

[Protagonist female + system + group portrait? Xing Yun went to a strange world and had two systems, Shuangxue and Xuanwu. Was it an accident that he came to this world? It seems not... —— "Chen Qingchuan, your sister's life has ended long ago. She should leave with us." "Shut up! My sister didn't deserve to die! I can make her live!" "Using forbidden magic to give her his own life? How ridiculous." … "Brother... I don't want you to give me your life. I want you to be well..." —— "The little girl has the prettiest smile... Smile more..." "Why don't we leave? Just hold on. The medicine will be gathered soon... They will be back soon... Don't go..." ——