Taking advantage of the autumn consecutive holidays, my wife and I went on a hot spring trip. We've been married for two years and have no children. Come to think of it, we hadn't gone on a trip together once since we got married... My wife, Akari, seemed very happy about it. While we were relaxing in our guest room after arriving at the inn, I heard some noisy, vulgar laughter coming from the hallway... Just as I was frowning and wondering what all the noise was about, a group of vulgar hot spring guests suddenly entered our room by mistake...