It's going to be the quintessential puppy love story of all K-dramas.

MBC's upcoming new romance series 'A Good Day to be a Dog' has dropped a heart-fluttering new teaser starring the Park Gyu Young, Cha Eun Woo, and Lee Hyun Woo!

The teaser begins with the high school girls all fawning over their dreamy math teacher, Jin Seo Won (Cha Eun Woo). But even the most perfect people have their flaws, and for Jin Seo Won, that's his extreme fear of dogs!

Next, there's the story's female heroine Han Hae Na (Park Gyu Young), an ordinary teacher by day who mysteriously transforms into a dog at night. Naturally, Hae Na and Seo Won do not make a very compatible pair. Meanwhile, there's another popular teacher who brings Miss Hae Na a smile at her workplace, the bright and gentle Lee Bo Gyeom (Lee Hyun Woo).

What happens between these three young teachers, and how do we enroll at that school? 

MBC's 'A Good Day to be a Dog' premieres next month on October 11 at 9 PM KST! Will you be tuning in?