Good-bye Days - Yui Apr 2026

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

The song remains one of the most iconic J-Pop ballads of the mid-2000s. It is widely remembered for its acoustic guitar melody and emotional lyrics about saying goodbye and the uncertainty of feelings during a final moment together. Over the years, it has been covered by various artists and featured in numerous tribute performances. Good-bye Days - YUI (Indonesian Cover by Dwi P. Ramanatha) Good-bye Days - YUI

The song was written specifically for Midnight Sun to reflect the story of Kaoru Amane, a girl with a rare skin condition (XP) that prevents her from going out in the sun. is the fifth single by Japanese singer-songwriter YUI