Sudden heavy rain in the countryside. I wandered into a mountain hut and I was alone with my admired sister-in-law, Sei...

Sei, who lives with her husband in Tokyo, has always been a tradition to spend the summers at the home of her younger sister and her husband living in the countryside. His brother-in-law Seiji had a longing for Saint, but his feelings were kept deep inside his heart. He tries to get some wild vegetables to distract him, but Sei also says he is bored and ends up accompanying him. A few hours later, the two of them were happily picking wild vegetables in the mountains, and were hit by a sudden heavy rain and evacuated to a nearby mountain hut. He was not welcomed, and was alone with Saint until the morning... In this situation, Seiji couldn't contain his secret feelings...