⚔️ Came for SEO IN GUK? Heartrider are #72 in today's live Fandom War — 0 points behind NAZE fans.
Heartrider · Updated 2026-09-30
SEO IN GUK (Heartrider) debuted 2009年10月27日 under STORY J COMPANY - 17 years active as of 2026.
| Debut date | 2009年10月27日 |
| Debut year | 2009 |
| Years active (as of 2026) | 17 |
| Agency / label | STORY J COMPANY |
| Members | 1 |
| Lineup | SEO IN GUK |
| Fandom | Heartrider |
When did SEO IN GUK debut?
SEO IN GUK debuted 2009年10月27日 under STORY J COMPANY.
How many years has SEO IN GUK been active?
As of 2026, SEO IN GUK has been active about 17 years, since debuting 2009年10月27日.
What agency is SEO IN GUK under?
SEO IN GUK is under STORY J COMPANY.
How many members does SEO IN GUK have?
SEO IN GUK has 1 member: SEO IN GUK.