As Korean fans are patiently waiting for F.T. Island's comeback mini-album, "RETURN," they already have reason for celebration. The boys released their first full length Japanese album, "FIVE TREASURE ISLAND" on May 18th and on it's first day, the album has reached the top of the Oricon Daily Album Sales chart by selling 20,410 units. Korean artists have been topping the Oricon charts quite frequently recently With the success of KARA, Jang Geun Suk, SNSD, Big Bang, and others. Congratulations to F.T. Island on this achievement. Their teaser video for "RETURN" will be released on the 20th, followed by the mini-album's release on the 24th. Source: Oricon [Thanks to everyone who sent this in.]