原来，凌不疑即将陪文帝西巡，需要蜀地舆图，舆图被万松柏当成了藏宝图留在家中。 万松柏不舍得「藏宝图」，矢口否认，凌不疑见到程少商前来，提出也要借宿万家，实则想趁机找到舆图。
Cheng Shaoshang was having a great time with Qiqi. She's interested in architecture and began to study the bridges at Wan's. When she got to know there'd be a birthday party coming soon, she came up with a plan.
