"Let's try her birthday," Lu Gan said.
Song Ci tried the code. "It's not right."
"What about four digits of the phone number?"
"Nope." Song Ci looked at the four numbers on the password, pondered for a while, and asked Lu Gan, "Did Young Master Di mention his birthday just now?"
Lu Gan shook his head. "I did just see this, though." As he spoke, he brought a photo over. In the photo, Mrs. Ji was hugging Young Master Di when he was a student.
"This was the photo in a frame in front of her computer. Her birthday is written on it, and the date at the bottom of the photo is October 1st, 2016."
"It's National Day." Song Ci smiled and entered 1001. Inside was a diary.