Jaesu Joheun Namja

The most important exam of his life… and Jeong-Seok blew it. Dumped by his girlfriend and rejected by his college of choice, the future looks bleak. But instead of moping, Jeong-Seok checks himself into a boarding cram school for a year. Sealed off from the outside world with nothing but a bunch of stressed-out, horny students for company, things start getting steamy in no time. How distracting! Perhaps some one-on-one lessons with the gorgeous, busty Ms. Kang will help him focus? Study hard, Jeong-Seok. Nice and hard…
(Source: Lezhin US, edited)
Note: Chapter count includes 2 special chapters.