One day Hayata comes across writing scrawled on the wall in a public bathroom asking for a "naughty friend". Giving in to his curiosity, he sends a message and they agree to meet up. But to Hayata's surprise, the woman he encounters turns out to be his friend's mom.



(Source: Irodori Comics)



Notes:

• Released at Comic Market 98.
  
• A live-action AV adaptation (URE-064) was released on February 25th, 2021.