One Day is an album by Akira Kosemura, released in 2021. The album is a original soundtrack CD.

• 1 Pale
• 2 Serena
• 3 Foe
• 4 Yuha
• 5 Mizet
• 6 Whit
• 7 Frea
• 8 Famile
• 9 Luna
• 10 Acari