The ntr in hentei anime memes 3.O sauce

OH so you want to know the sauce for the ntr... You will find it at the end of the page , but first here is some picture to accompany until you reach end of the page

Now the sauce is : https://myanimelist.net/anime/50804/Inkou_Kyoushi_no_Sai_Seikatsu_Shidouroku