Artist Profile
- Real Name: Bian Tianyu
- Native Name: 边天语
- Nicknames: Kittie, Cheoneoni (천언이)
- Birthday: Mar 09, 2008 (18 years old)
- Blood type: N/A
- Height/Weight: 164 cm (5’5″) / N/A
- Gender: Female
- Zodiac Sign: Pisces (Western), Rat (Chinese)
- MBTI: INFP
- Birthplace: Beijing, China
- Nationality: Chinese
- Profession: Singer, Dancer
- Language Skills: Mandarin, Korean, English
- Current Agency: HighUp Entertainment
- Debut: April 21, 2026
- Fandom: CHACHA
- Years Active: 2026–present
- Group: UNCHILD
Tina (티나), born Bian Tianyu (边天语), is a Chinese singer and dancer born on March 9, 2008. She is currently under High Up Entertainment and is a member of the South Korean girl group UNCHILD (언차일드), where she serves as the visual, lead dancer, and sub-vocalist. Her Korean name is Byeon Cheon-eon (변천언). Before joining UNCHILD, she was known by the stage name Kittie during her time on Chuang Asia Thailand.
Early life
Bian Tianyu was born in Beijing, China. She began her trainee career in 2023 at XTS Entertainment, a Chinese entertainment company.
On December 31, 2023, during the Amazing Thailand Countdown 2024 event held at Icon Siam shopping mall in Thailand, she was confirmed as a contestant on the survival show Chuang Asia Thailand under the stage name Kittie. The show was produced by WeTV and brought together female trainees from multiple countries to form a girl group based in Thailand.
After being eliminated from Chuang Asia Thailand, she remained at XTS Entertainment until 2025, and also spent time training under Pledis Entertainment. She joined High Up Entertainment sometime in 2025, later becoming the final member revealed in UNCHILD.
Career
2024
On March 2, 2024, Tina was eliminated from Chuang Asia Thailand in episode 5, ranking 42nd overall.
2026
On March 27, 2026, fans identified Tina as one of the members of UNCHILD while the group was filming content at the Gyeongju World Culture Expo Park.
On April 7, 2026, she was officially introduced as a member of UNCHILD under the stage name Tina, through the group’s debut teaser video, in which she appeared listening to music on a bus.
On April 21, 2026, UNCHILD made their official debut and released their first digital single, “We Are UNCHILD.”
Popularity
Tina is the first Chinese artist to debut under High Up Entertainment. Before debuting with UNCHILD, she had an existing following from her time on Chuang Asia Thailand as Kittie. She later appeared in GQ Korea and Cosmopolitan Korea in May 2026, shortly after UNCHILD’s debut.
Fun Facts
- She designed the logo for UNCHILD’s fandom, CHACHA (차차).
- Her keyword within UNCHILD is “Friendship Ambassador” and her signature phrase is “Let me introduce you to my new friend.”
- Her group color is yellow, while her personal favorite color is blue.
- She describes herself as having a cat-like personality: she likes people but has a hard time approaching them first.
- Her hobbies include listening to jazz and soul music, going for walks at sunset, and imitating frog sounds.
- Her role model is Jennie of BLACKPINK.
- Some fans have said she resembles actress Go Min-si (고민시).
- Tina was the last member to join the UNCHILD lineup, around August 2025.
- When asked what she would do in Japan, Tina said she wants to visit Hakone and try different kinds of fish cakes, which she loves.
- Her bucket list includes cooking with the members, traveling together as a group, and having a girls’ night out with the team.