Liang Jin thought that Yu Zhijing, just a child with a mobile phone, would simply watch videos or play games and shouldn't cause any trouble, so she bought a phone for her and even got an anonymous card. She couldn't avoid it because Yu Zhijing kept making a fuss.
Yu Shangnan didn't pay much attention after knowing about it, his thoughts were similar to Liang Jin's. However, at work, he was always resolute about confiscating phones, but he didn't know that in daily life, Yu Zhijing had already unknowingly recorded how they treated her, and after each recording, she would immediately send it to Ye Qiu and then delete it right away.
So although Liang Jin and Yu Shangnan would occasionally check Yu Zhijing's phone, they never found anything wrong, as generally, people wouldn't go out of their way to check a child's phone delete history.
