I’ve seen quite a few older man or teacher / student romance movies, but I’m looking for a few more. I’ve seen close range love and daytime shooting star, Innocent thing, My little bride amongst many others. It doesn’t have to be a certain genre and I don’t mind if it’s about obsession, a thriller, school romance - just any storyline with older man or teacher with student or younger woman relationship / romance. 

I love plots like these sm! Here's the ones that I have seen :)

Kou Kou Kyoushi 2003 

Kou Kou Kyoushi  - 1993 version

Hello Mr. Right 

My Teacher  - One of my personal favorites apart from close range love

Somewhere Only We Know 

Sweet 18 

The Liar and His Lover - There is a Korean Version too

Pieta in the Toilet - Not school based

P to JK - Between policeman and teenage girl :)

Moonshine and Valentine - Not school based

Eternal Love of Dream - Not school based

Go Go Squid! - Not school based

Sachiiro no One Room - Not school based, psychological

 Takane to Hana - Girl is teen, ML is an adult

Coffee & Vanilla  - Slightly school based as FL is in Uni

Have you seen my teacher?

My Mister
Goblin
Dong Yi
Eternal Love of Dream
Koi wa Tsuzuku yo Doko Made mo
Hotaru no Hikari
A Beautiful Mind

Other recommendations:
Scholar Who Walks the Night
Black
Doctors

I second itscelina, My Teacher is a definite my watch for female student x Male Teacher romance. And pieta in the toilet is very interesting

Also try:

  • Find Yourself - secondary couple
  • Love Song - mentor/coach-mentee (but they didnt end up together, girl ended up with SML
  • Papakatsu
  • Khun Chai Taratorn
  • Doctors
  • Taisetsu na Koto wa Subete Kimi ga Oshiete Kureta
  • Himitsu no Kankei - Sensei wa Doukyonin
  • I am sam
  • Valid Love
  • Movie/drama special
    • The Harmonium in My Memory - i love this
    • My rainy Days
    • Sensei Kunshu - didnt like this
    • Yong Soon - love this
    • Scarlet innocence
    • Sensei Ni Koishita Natsu
    • Starting Over Again (philippines) 
    • The red teacher (drama special) 



But for ahjusshi  romances (older gjy x younger woman) , also check out:

  • Marriage contract
  • Mr. Sunshine
  • The spring day of my life - tragic ending
  • The eccentric daughter in law
  • A poem a day

Chugakusei Nikki 

No school based but Search: WWW. The female lead is 10 years older than the male lead. 

Super late reply here, but if you're still looking for movies with this theme, The Harmonium In My Memory fits what you're looking for as well. It's a bit of a throwback, but it features young Lee Byung Hun and Jeon Do Yeon, so I think it's still worth the watch! 

dr john....mentor/boss

touch...mentor

face off...mentor