It's been a long time

"It's been a long time" is track 3 by Solar from Solar Sensitivity, Pt 6, released on April 24, 2018.

• Adrenaline (Inst.)
• Alone People
• Always, be with you (나는 그대고 그대는 나였다)
• Always, be with you (Inst.) (나는 그대고 그대는 나였다 (Inst.))
• A song from the past
• A song from the past (Inst.) (이 노랜 꽤 오래된 거야 (Inst.))