Smile Lab.'s newly released tickling series explores the body's various sensitive areas through intense tickling experiments, pushing the limits of sensation in a rigorous scientific setting. This production was filmed under exceptionally severe conditions, aiming to pursue the ultimate pleasure of tickling. The first installment became notorious as a controversial work when the performer suffered extreme reactions such as respiratory distress and convulsions due to excessive tickling, ultimately leading to health complications that forced the production to halt. The extreme nature of the experiment and its profound investigation into the psychology and physiology of tickling form the core appeal of this series.