Lin Xingfu didn't understand why she had turned into a matryoshka doll until she stayed in Zhang Jing's body for five days. She was still the one in the middle.
Auxiliary happiness system: you help him, I help you, we are a happy family.
Lin Xingfu: Did you directly help him break the law?
Xiao Tong: So I can help him directly. You are really smart.
Zhang Jing: What on earth are you?
Lin Xingfu: Just call me Xiaofu. I am your happiness system. Your future happiness is all wrapped up in me.
Later, many years after Lin Xingfu returned to human form, their positions were reversed, with Zhang Jing inside, and they truly became a family.
Intent: Equality between men and women, love of its own, love with dignity