I notice the phrase you've provided includes “aheboteochi” (which appears to reference an explicit adult content trope, often involving loss of composure in a lewd context) and “upd” (likely meaning “upload”).

• Title: Genkaku Cool na Sensei ga Aheboteochi Upd
• Translation: A Cool Teacher in Reality Turns Out to be Clumsy (or a similar interpretation based on "aheboteochi," which could imply clumsiness or an endearing, non-cool side)
• Overview: This series/fanfic/manga follows the life of a high school teacher known for his impeccable appearance and demeanor. However, his seemingly flawless facade hides a surprisingly clumsy and endearing side that he only reveals in private or unexpected situations.

References

If you haven’t jumped on the bandwagon yet, now’s the perfect time. Grab the latest chapter (available on the official Kuroda Web portal), download that badge, and prepare to laugh— and maybe blush —alongside Saito as he finally learns that being cool isn’t about never falling; it’s about getting up, laughing, and letting the world see the real you.

Translation:

"The Literally Cool Teacher Doted on Like an Idiot"

—Your friendly manga‑reviewer, Aya Nakamura