Nettlerase, A Story About His Wife Who Was Cuckolded By His Childhood Best Friend Kana Morisawa

I met my husband at work and we got married. And he is... my husband's childhood friend. The two of them were very close, and they often came over to our house for meals like this. Honestly, I had never been aware of him at all, but from the day it was somehow decided that I would pretend to be my husband's childhood friend's girlfriend... little by little... the gears... started to slip...