[All] The rainbow song is fun and exciting

The lyrics are really pretty and it's a song that brightens your heart just by listening to it.
The clear and clean feeling of the hero's voice goes so well with the word rainbow.
Even on days when I've been feeling down all day, listening to this song brightens my mood.
There's a rainbow at the end of the dark sky. The lyrics are so comforting.
I feel so happy when I listen to it on a sunny day with my earphones on and while walking.
The bright and hopeful atmosphere throughout the song warms my heart.
I like it even more because the last chorus is so touching and makes me cry.