When a newly launched travel magazine advertised for a reader model on the internet for a hot spring location experience project, Anna showed up. Her husband is a researcher at a manufacturer and is extremely busy, so the poor wife spends her days alone. However, this location shoot is actually a huge prank. Through cleverly orchestrated psychological manipulation along the way, the wife's daily loneliness is soothed, and she becomes intoxicated with pleasure that her husband never knew she could experience, and accepts his sperm.