Appears on releases
| # | Title | Length | Track artist | Release title | Release artist | Release group type | Country/Date | Label | Catalog# |
|---|---|---|---|---|---|---|---|---|---|
| Official | |||||||||
| 1.9 | 不安 | 3:28 | I’ve | つよきす3学期 VOCAL & ORIGINAL SOUND TRACK | Various Artists | Album |
| INH-286-CD | |
| 1.10 | 不安 | 3:28 | I’ve | つよきす3学期 Full Edition Game Disc & Original Sound Track (つよきす3学期 Full Edition オリジナルサウンドトラック) | Various Artists | Album + Soundtrack |
| INH-303-CD | |
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