Good Guy is the sixth Japanese single by South Korean boy group SF9. It was released on June 17, 2020 by FNC Japan.
I. Release
The single was initially announced for release on April 15, 2020, but was postponed to May 27 due to the COVID-19 pandemic. It was then postponed again to June due to safety concerns for stores.
The single was released in three versions with two different b sides. The Type B DVD contained footage from the group's Japanese RPM tour.
II. Tracklist
III. Digital
| Title | Composer | Arrangement | Duration |
|---|---|---|---|
| Good Guy (Japanese Ver.) | Geek Boy Al Swettenham, Takey, Daniel Kim | Geek Boy Al Swettenham | 3:13 |
| One Love (Japanese Ver.) | J-Hype, Mussashi | J-Hype | 3:37 |
| Am I the Only One (Japanese Ver.) | Han Seong Ho, Hwiyoung, Chani, Zuho, Youngbin | The Aristocrats | 3:37 |
IIII. Regular & Type B
| Title | Composer | Arrangement | Duration |
|---|---|---|---|
| Good Guy (Japanese Ver.) | Geek Boy Al Swettenham, Takey, Daniel Kim | Geek Boy Al Swettenham | 3:13 |
| One Love (Japanese Ver.) | J-Hype, Mussashi | J-Hype | 3:37 |
IIIII. Type A
| Title | Composer | Arrangement | Duration |
|---|---|---|---|
| Good Guy (Japanese Ver.) | Geek Boy Al Swettenham, Takey, Daniel Kim | Geek Boy Al Swettenham | 3:13 |
| Am I the Only One (Japanese Ver.) | Han Seong Ho, Hwiyoung, Chani, Zuho, Youngbin | The Aristocrats | 3:37 |
III. Single Preview
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IV. Spotify
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V. Music Video
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VI. Concept Photos
VII. Commercial Performance
Good Guy has sold more than 38,000 copies in Japan. The single peaked at number 2 on the Oricon Singles chart and at number 13 on Billboard Japan's Hot 100 chart.
