: This is the title of the series, a well-known adult anime (OVA). The title translates roughly to "Hypnosis Guidance."
From what I understand, "Saimin Seishidou" is a Japanese manga and anime series that revolves around hypnosis and mind control. "TREX" seems to be a specific arc or part of the series. "EP16" likely refers to episode 16, and "6 CEN 20 Top" might be related to a ranking or a specific scene. saimin seishidou trex ep16 of 6 cen 20 top
Given the confusion, I'll provide a general overview and address possible topics of interest: : This is the title of the series,