Just when Su Yue was about to ask Bai Jing why she was unhappy, Bai Jing called after her. "Su Yue."
Su Yue raised her eyebrows. "Mm?"
Bai Jing stared at her with bright eyes. "Tomorrow. Tomorrow is my younger sister's tenth birthday. Can you accompany me home?"
"Sure," Su Yue agreed almost immediately. She then thought of something that made her confused, and so she asked, "That Lei Yong's younger sister?"
She remembered that Bai Jing was an only child.
Bai Jing explained, "My mother had her after me."
"Oh." Su Yue nodded. "So both of you have the same mother?"
After asking, she confirmed it in her mind. 'It should be.'
Bai Jing nodded.
Su Yue smiled and continued, "Then she's your biological sister. I have to think hard about what present to get her."
She then turned around and picked up her phone. She opened WeChat and found Xuxu's chat.
"Third sister-in-law. Third sister-in-law."
