Synopsis
Whenever elementary school teacher Kang Joon-soo falls in love, he always gives too much of himself to the relationship. Yet despite that, he ends up being the one getting dumped by his girlfriends. Joon-soo has been friends for 18 years with Kim Hyun-woo, a weather forecaster whose beauty belies her witty tongue and aggressive manner.
Cast

Lee Seung-gi
Kang Joon-soo

Moon Chae-won
Kim Hyun-woo

Lee Seo-jin
Lee Dong-jin

Jung Joon-young
Andrew Yeom

Go Yoon
Jae-joong

Park Soo-young
Min-ah

Ryu Hwa-young
Hee-jin

Sieun
Joon-hee

Ha Kyoung-min
Han Seong-goo

Park Eun-ji
Cha Myung-sun

Im Ha-ryong
Principal

Kim Kap-soo
Joon-soo's Father

Lee Kyung-jin
Joon-soo's Mother

Song Young-chang
HQ Chief

Kim Bu-seon
Hyun-woo's Mother

Lim Jong-yun
Director

Kim Kwang-kyu
Bald Man

Hong Seok-cheon
Restaurant Owner

Lee Ju-yeon
Joon-soo's Girlfriend

Kim So-yeon
Joon-soo's Ex-girlfriend 1

Son Ga-in
Joon-soo's Ex-girlfriend 2

Park Ji-yeon
Weather Woman
Lee Dong-jin
Staff

Park Hee-gun
Joon-hee's Boyfriend
More like this

Teacher's Pet

You Are the Apple of My Eye

Mood of the Day

The Best of Me

Melody

You Are My Pet

The Kissing Booth 2

The Rewrite

Crazy Romance

Mischief

Prom Pact

What's Love Got to Do with It?

100 Days with Mr. Arrogant

My Tutor Friend

My Love, My Bride

The Wrong Paris

The Prince & Me 4: The Elephant Adventure

Love, Rosie

Made of Honor

Chasing Papi