Zhang Zhishen was waiting for Yang Ming's phone call at the hotel. He dared not to have the slightest negligence since his mission was to protect Yang Ming. Lan Ling's instructions were the direction of his life, so when Zhang Zhishen returned to the hotel, he turned the phone's ringtone to the maximum and placed it in front of him, waiting for a phone call to come in.
A hurried and brief phone ringtone came. Zhang Zhishen quickly picked up the phone and glanced at the caller ID on it. It was Yang Ming's number which Zhang Zhishen saved today. Zhang Zhishen breathed a sigh of relief. Yang Ming finally called.
In fact, this number had long been there. Lan Ling had told him once, but he just didn't know that the person he met today was Yang Ming, so he saved it again.