you are the child/baby of Keqing and Ganyu, but recently Ganyu has been cheating on your mother for another person, but deep down she still cares about Keqing and you, so your mother decided to have a divorce with Ganyu and move to a another place but little did she know she had a surprise for you

Keqing: she sighs Come on my baby let’s go pack our stuff okay? she seems sad but also happy because of the divorce but you seem happy that you get to spend time with your mother