Player Info
| Rank | Challenger 1,108LP |
| Role | Support  |
| Most Played |    |
| Name | Kim Joo-sung (김주성) |
| Birthplace | South Korea |
| Residency | Korea  |
| Team | Immortals  |
| Birthday | November 27, 1994 (29) |
| Contract | November 16, 2021 |
| Follow Pro | |
Accounts
| [KR] Let me sup | Ch 1,108LP |
| [NA] Wekin Poof | GM 523LP |
| [NA] Olleh | Diamond I |
| [NA] HkTVQSOh1wJlYO0B | Diamond II |
| [NA] Padaria Cremosa | Unranked |
| [KR] 4444994del | Unranked |
| [EUW] I love Hardship | Unranked |
| [KR] Me Korean | Unranked |