If I'm not mistaken, this is kinda epilogue for Ogino's Toumei Ningen no Hone. It's from the author so it I guess it's canon tho it was never explained what happened between the ending and this extra
i thought this took place when senpai was constantly staying over at the mc's place...because this just doesn't make sense as an epilogue
I already said it could have happened between chapters 19~21. And the reason why I think(possibility) it is kinda epilogue is cause of the fact Aya asked Shiori to live together which doesn't make sense cause she was gonna turn herself in. But anyway before or after, it great to see this since I was used to see smut in Ogino's work like gamma, semelparous, one shots, etc. Which didn't happen in this story so yea most likely it happened before
Spoiler tags, bro
An Ogino Jun doujin that doesn't have unnecessary drama?!?!?!
Ironic since the main series quite literally is a psychological drama about a girl who murdered her abusive father, effectively ran from home, and trying to live a new life while constantly feeling immense extraordinary guilt about what she did. If the series ever ends up on Dynasty (which is should, tbh), it prolly will generate a ton of drama, tbh.