The Ultimate Tea Master

Xiaotian notices his mother's best friend, Aunt Xue, acting strangely—leaving early, returning late, and wearing unusual clothes. Suspicious, he follows her to a mysterious tea house. To his surprise, Aunt Xue turns out to be an undercover journalist, disguised as a tea blender to expose the gray industrial chain behind the tea house. Xiaotian is unexpectedly drawn into the plan, forced to impersonate a regular customer and repeatedly request Aunt Xue's service to divert attention. However, after a month undercover, they face suspicion from the staff, and the arrival of a new 'Ultimate Tea Master' further complicates the situation. Can this perilous undercover operation successfully uncover the dark truth?