Bai Jinjin hung up the phone with a look of satisfaction on his face. Not long after, his phone rang again, and when he picked it up, it was his home caller. She quickly picked it up, not expecting the person speaking to be his grandma, but Bai Yan's teacher.
"Is it Bai Yan's sister?"
Bai Jinjin could tell that this was Teacher Li's voice, Bai Yan's class teacher.
She quickly replied, "Yes