Gay Min Su and lesbian Hyo Jin marry, each for his/her own purpose, but what will be the outcome for these two and their respective lovers?

From Hee Jung Park comes ten stories of love, sadness, longing and alienation. A young man finds himself continuously drawn into the orbit of future suicide victims, while another finds redemption in an unlikely ally. And an apathetic lover can only enliven his pallid relationship with the crimson color of blood...

1) Blood
2) So Long...
3) Crazy Guy
4) Feel So Good
5) Insomnia
6) Ember
7) Kwanglim is Amazing
8) Music Box
9) Ul Heul Lee
10) Crybaby Angel

From JanimeS:
This series is not about romance, exactly, but does contain the element for it. This series mainly focuses on overcoming the main characters' hardships. Each character has a different hardship. There is really nothing more to mention about the plot.

It starts with a school girl who has trouble with her surroundings. It all started when her classmate was bullied and eventually commited suicide. Being a part of the group that bullied the girl, she feels extremely guilty. Her life becomes meaningless, and she wants to end it.