Madam, You've Gone Viral Again.

Summary

Summary: In a mathematics class, Chu Yi Ran audits the course and cleverly handles the professor's trap by explaining Singular Value Decomposition. Later, Ji Yi becomes concerned about He Zheng's whereabouts after being unable to contact him. Using a modified watch, she tracks his location, discovering he is not at Gong Jia as Bai Yan claimed. Suspecting something is wrong, she asks Bai Yan to drive her to the location immediately, determined to find out what happened to her third brother.

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