This series belongs to a popular sub-genre of adult manga/doujinshi where a "strict" or "cool" character—usually a teacher or a disciplinary figure—undergoes a dramatic personality shift through "corruption" or "mind-break" tropes (often referred to as ochi or ahegao themes).
If you are looking for the "updated" status of this series, here is where it typically stands: genkaku cool na sensei ga aheboteochi updated
The "Strict Teacher" trope is currently seeing a massive resurgence in the eroge and doujin community. Fans are drawn to: This series belongs to a popular sub-genre of
These series often feature highly detailed "cool" character designs that contrast sharply with the later "fallen" states. Look for the specific "Circle" (artist group) on DLsite
Look for the specific "Circle" (artist group) on DLsite.
Many of these titles are serialized as webcomics or independent doujinshi. If the creator is active on Pixiv Fanbox or Fantia , chapters are often released on a monthly subscription basis.
The "Genkaku" (strict) aspect adds a layer of psychological tension that many readers find more engaging than standard rom-coms. How to Find the Official Update