During a record-breaking summer heat wave, I return to my hometown after giving up my dream of becoming an actor and reunite with my childhood friend Ai after several years apart. Now married, she has grown sexier and more beautiful, though her innocent smile remains unchanged. She treats me just as she always did, while I hate myself for still clinging to the feelings I have carried for her. Whether she knows how I feel or not, Ai flashes a seductive smile and playfully pounces on me...