Koo Han Seo
- Name: Koo Han Seo
- Native name: 구한서
- Also Known as: Koo Hanseo, Gu Han Seo, Gu Hanseo, 丘翰抒
- Nationality: South Korean
- Gender: Male
- Born: August 13, 2002
- Age: 24
In August 2026, it was revealed via TRYTHAT's official Instagram that he is a member of the group. They released the pre-debut single "Frequency" on August 18, 2026. Their debut date is currently unknown.
(Source: MyDramaList) Edit Biography
TV Show
| Title | Rating |
|---|---|
Universe League
Korean TV Show, 2024, 10 eps
[Contestant]
(Regular Member)
|
8.1
|
UNDER19
Korean TV Show, 2018, 14 eps
[Rap Trainee]
(Regular Member)
|
7.8
|
Inkigayo
Korean TV Show, 1991, 1240 eps
[Performer] (Ep. 1246)
(Guest)
|
8.0
|
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