One day, I went on a hot spring trip with my girlfriend's best friend couple, and I met her best friend, Suzume, for the first time. She was exactly my type, and I was captivated by her at first sight. However, when we arrived at the inn, I learned that Suzume was engaged to her boyfriend. Overcome by impulse upon learning this, I couldn't think straight and couldn't resist the desire to steal her away. That night, I ended up sneaking into the hot spring Suzume had gone to...