STC's (Square the Circle) national live tour finally reaches Kyushu! There, they unexpectedly get their first offer to appear on TV. And the reporter turns out to be Setsu's first love, Yuna Tachiki! But an unthinkable incident occurs in their big moment…! This wasn't the response STC was hoping for, was it?! Then, Setsu and Yuna finally get an evening alone…