Appears on releases
| # | Title | Length | Track artist | Release title | Country/Date | ||||
|---|---|---|---|---|---|---|---|---|---|
| Official | |||||||||
| 1.13 | Portraits | 5:05 | V6 | READY? |
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| 1.13 | Portraits | 5:12 | V6 | READY? (通常盤/初回限定仕様) |
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| 4.4 | Portraits | 5:06 | V6 | Very6 Best (初回盤A) |
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| 4.4 | Portraits | 5:06 | V6 | Very6 Best (初回盤A(4CD＋1Blu-ray)) |
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