In what year was the album “Cheerful Sensibility” released by FTISLAND?

In what year was the album “Cheerful Sensibility” released by FTISLAND?: The album “Cheerful Sensibility” was released in 2007 by FTISLAND, featuring 12 tracks.
What is the most successful song from the album “Cheerful Sensibility” by FTISLAND?: “Love Sick (사랑앓이)” is the biggest hit from the album “Cheerful Sensibility” by FTISLAND.

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