https://www.dlsite.com/maniax/work/=/product_id/RJ01202747.html
https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_390414/

https://www.pixiv.net/artworks/119925890

Base +65

>Yui Uzuki is the most beautiful girl in her grade and is trusted by everyone. She is happy with her first boyfriend, blessed with friends, and has fun every day.
>One day, she has a one-on-one meeting with her teacher, Numata, to discuss her future.
>There, she is shown a video of a secret between her and her boyfriend, which is against the school rules and is enough to exploit Yui's weakness. Numata devours the pure and innocent girl that is Yui Uzuki.

Base +19