Sumin is such a fan of Younha
, that she humbly purchased tickets and went to Younha's fan meeting by herself, without telling anyone, and without the aid of STAYC
's manager in getting her any preferential treatment. Her plan to blend in was foiled, however, when a fan recognized her. Younha thanked Sumin for her efforts with a signed album.
Sumin has been friends with Rocket Punch
since they met as trainees in March of 2017. Sumin is just 4 days older, both are "rabbits", and they share the same MBTI (ISFJ).
After only having seen a picture of her on social media, an agency's staff traveled all the way from Seoul to Sumin's hometown of Pohang to scout her. She auditioned in a karaoke bar near her home, where she sang 'Have A Drink' by Zia
Sumin is the 'Dad' of STAYC
according to J
If Sumin hadn't become an idol she believes she would've been an office worker and mukbang YouTuber.
Sumin owns a record player and enjoys listening to vinyl. She's collected several albums including "Shawn Mendes: The Album" and Day 6
Using "SsumD" as her DJ nickname, Sumin hosts a radio show, on KBS CoolFM's 89.1 'Station Z'. The program is called "Sumin's STAYZ".
Sumin can do the wave. With her eyebrows!
Sumin said her role model is BTS. She wants to learn everything about teamwork from them.
Sumin, together with Victon's Sejun, starred in Huh Gak's music video for the song 'The Last Night.'