From Shoujo Manga Maniac:
In Korea, the deer is considered as the symbol of purity and innocence. Ria wishes she were a deer... Torn between her love for her protective brother and her desire to fend for herself, she'll need to learn how to make her own choices, as well as her brother will. Not only Rin meets a girl who falls head over heels for him, but he also starts to feel growing an odd interest in guys...

Saseum is a moving story about the everyday life of teens in Korea, a beautiful story of love and human feelings.