This work is a re-recording of a group of works released as a trilogy - 'RAINBOW SKY', 'ViViD RED' and 'NIGHT BLUE' - so that they can be enjoyed on a single album. Just like the daily ups and downs of our hearts, the tempo and tune of each piece changes drastically. If you find a piece you like, we hope you will like and comment on the official YouTube channel, share it on X, Instagram, etc! Please visit the TuneCore artist page (https://www.tunecore.co.jp/artists/okitsu) for various official accounts.