Lyric

The title "kaihaku" is a color name that refers to the color grayish white.
The song uses the calm and soft color "kaihaku" to describe the feeling of realizing that even though the dream you're chasing has changed, you're still happy with your everyday life with the important person in front of you.
Beginning with a slow melody, these emotions are expressed with high-pitched shouts.
The contrast between acoustic and electric guitar, the bass melody line, and the uplifting interlude of the piano and hard guitar sounds all add depth to the song.
Be sure to also pay attention to the lyrics, which make extensive use of kanji compound words.