Bitter End of the Month

Seok Hee and Hae Yoon are the university students. Seok Hee has loved Hae Yoon from the first time they met. When Hae Yoon wants to take a rest before the end of the lecture, Seok Hee suggests to go to the sea together with a photo exhibition. Seok Hee goes to the sea with a letter that she hasn't sent before. Can her letter be delivered to her?
(Source: Funnycon Distribution Vimeo)