Rieko and Takashi work for a hot spring inn consulting company. The two of us decided to go on a field trip to check out a new hot spring, but due to a mistake at the inn, there was only one room left and we ended up sharing a room. The benefits of the hot spring in this inn are that it is nutritious, treats fertility, and increases sexual desire. After bathing, Takashi got horny and attacked Rieko. Takashi's cock was unexpectedly strong, and Rieko lost her mind and asked for another vaginal ejaculation over and over again.