One day, I met her best friend Yuka for the first time when I went on a hot spring trip with her best friend couple, and I fell in love at first sight with my ideal type. However, when she learned that Yuka was engaged to her boyfriend, she was heartbroken. That night, when Yuka went to the hot spring alone, I couldn't think of anything, so I chased after her, even though I knew it was no good...