Lyric

"Those Days" is a J-Pop track wrapped in the atmosphere of the late 1980s, portraying a protagonist who tries to move forward while still carrying the past with them.

Everyday details such as "a piece of bitter chocolate," "deep-roast drip coffee," and "a mystery novel read late at night" reflect SUMASA's distinctive lyrical style, vividly capturing the quiet sadness of someone living with a mood that never fully clears. In the chorus, the protagonist admits a longing to return to those days, while the following post-chorus asks for the "Courage" to keep walking without looking back. Together, these sections portray the tension between being pulled back toward the past and still wanting to move toward the future.

Musically, the song is centered around D major, but seventh chords such as Gmaj7, Em7, F#m7, and Bm7 add a lingering sense of nostalgia that never fully resolves into simple brightness. Secondary dominants including B7 and F#7, along with the suspended tension of Asus4 and Bsus4, further express the protagonist's hesitation and emotional attachment. Moving at a light 120 BPM, the track maintains an elegant sense of momentum while its sophisticated chord progression avoids an easy or completely cheerful resolution.

The arrangement is built around warm electric piano, soft digital synthesizers, rounded bass, tight drums, and understated clean guitar. Its polished sound evokes the kind of refined pop music that might have drifted from an FM radio in Japan during the late 1980s. City lights, a slightly mature atmosphere, and the loneliness of urban life all seem to pass through the music, leaving a lingering emotional afterglow instead of resolving everything by the end.

"Those Days" is not a song about forgetting the past. It is about accepting unforgettable days as part of who you are, while still wishing for the courage to take one more step forward. Bittersweetness and hope quietly coexist throughout this reflective J-Pop song.