Ako, wearing a sleek, shiny competitive swimsuit, engages in a tickling battle with an M man. Sensitive to tickling from the start, Ako writhes and jerks uncontrollably, delivering one adorable reaction after another. But she quickly fights back, relentlessly targeting the M man with careful, thorough, and obsessive tickling attacks. Realizing how much fun tickling can be, Ako's sadistic side begins to awaken, finding