A fifty indecent hole competing for a young and strong meat stick that unfolds under the roof on a trip. Hitomi and Ikumi, a good friend of mine, came to a long-awaited hot spring trip. Ikumi, who had a liking for Hitomi's son Kenta, began to make motions on Kenta while the subtle atmosphere was flowing with the appearance of each companion, and a nasty hot spring for one night and two days. The story has begun.