The desire to be a NTR'd: My beloved wife gets a slippery, bubbly, crippled bath experience in a mixed-gender open-air hot spring. (IENE-477)

"Enter a mixed-gender hot spring alone and be scrubbed by a strange man! If you can last 10 minutes, you'll get a 100,000 NTD bonus!" In reality, this was a prank orchestrated by a perverted husband with NTR desires, who wanted to witness his wife being sexually assaulted by a stranger...