C656 Young Master Leng Is My Reborn Father

However, when Leng Yihan and co. walked in and searched for a long time, they still couldn't find the exit, so they didn't know which direction they escaped in.

Until a subordinate came to report: "Young Master Leng, I found a secret passage!"

"Go!" "Chase after them!"

With Leng Yihan's order, they all headed towards the secret passage, which was the back door of the research institute