Yui — Good-bye Days -

Initially signed to Sony's GR8! Records, YUI moved to the main Sony Records label after her debut, eventually releasing "Good-bye Days" through their STUDIOSEVEN Recordings label. Tracklist Details All three tracks on the single were featured in the movie: Good-bye Days: The main theme song. Skyline: A lively, upbeat track.

It became YUI’s highest-selling single, with over 200,000 copies sold . Its popularity significantly boosted her subsequent releases, such as "I Remember You". Good-bye Days - YUI

is the fifth single by Japanese singer-songwriter YUI , released on June 14, 2006, under the artist name "YUI for Kaoru Amane" . The song served as the theme for the film Midnight Sun ( Taiyou no Uta ), in which YUI also made her acting debut as the lead character. Production and Release Initially signed to Sony's GR8