Rin, a mother who has dreamed of going to Hawaii since she was a child. She was holding a fashion show with the swimsuits she had bought as if in prayer, hoping to go to Hawaii this year... when her son Toru arrived. Toru was mesmerized by Rin's bikini, which was more risqué than he had imagined, and, in keeping with Rin's yearning for Hawaii, he decided to give her a taste of the tropical atmosphere with an oil massage. Toru, unable to contain his excitement at Rin's voluptuous and provocative body, reaches inside her swimsuit...