| Song | Artist | Lyricist | Composer | Opening Lines Of Song |
|---|---|---|---|---|
| Loop ～One of the BE:ST-03 RYUHEI～(rupuwan'obuzabiesuteizerosuriryuuhei) | RYUHEI(BE:FIRST)(ryuuheibifasuto) | RYUHEI・SKY-HI・Ryosuke “Dr.R” Sakai(ryuuheisukaihairyousukedokutaarusakai) | RYUHEI・SKY-HI・Ryosuke “Dr.R” Sakai(ryuuheisukaihairyousukedokutaarusakai) | Slowly 退屈を憂う() |