Irreplaceable persons' singular emotions (Reboot Ver.)

We are all unique individuals, irreplaceable by anyone else. No one can entirely understand or relive another person's emotions, experiences, or the life story they've woven. Yet, empathy allows us to connect. If any of the diverse emotions embedded within these songs resonate with you, as the creator, that would be my greatest hope.

For this collection, I deliberately included a wide variety of styles-songs with upbeat vibes, melancholic melodies, English lyrics, and Japanese lyrics. However, to keep the album from feeling scattered, I followed one unifying rule in its creation. Can you figure out what it is?

About the Reboot Version: This album has been re-registered with changes to the tracklist and song order from the original version, which is currently no longer available for streaming.