There was a girl who is so in love with the world. She is a happy-go-lucky person. She is so precious as a diamond. She seems to be easily attached to the people who make her feel important. She tried searching and searching the one for her but unfortunately, she ended up with a broken heart. The happy-go-lucky and a cheerful girl was lost. Lost in the darkness. Lost in sadness. Until one day, one summer, her life suddenly has changed. He came, Is he already the one? Let's find out! :)