What always stood out for me in this one was a little scene, mostly forgettable, especially considering that was not what the story was about, but truly hammered home the emotions... The confrontation Kitsune had with him upon learning he was on a date with Mayumi.
I did not give a link, because it is a lemon and this is not the lemon section. However, you forgot one site to check. It was posted here on this site in the lemon section itself.