Profile
- Birth name
- Choi San (최산)
- Birthday
- 1999-07-10
- Zodiac
- Cancer
- Height
- 178 cm
- Blood type
- B
- MBTI
- INFP
- Nationality
- South Korean
- Position
- Lead Vocalist
- Groups
- ATEEZ
Brand headline
Advertisement 728x90
About
Short bio
San is a lead vocalist and performer of ATEEZ celebrated for his explosive stage presence, emotional expressiveness, and playful off-stage personality
Background
San (산 / Choi San) is originally from Namhae, South Gyeongsang, South Korea, though he was born in Jinju due to the lack of hospitals in his hometown at the time. He grew up with an older sister named Haneul, and much of his childhood was spent with his grandparents, who played a major role in raising him while his parents were working.
His name carries a symbolic meaning given by his father — “San” (mountain) — representing both a comforting hill people can lean on and an enormous mountain others cannot easily challenge. This dual symbolism mirrors his public image: gentle and comforting off stage, yet powerful and commanding during performances.
Before debuting, San trained under KQ Entertainment and officially debuted with ATEEZ on October 24, 2018. Beyond singing and dancing, he is widely recognized for his athletic flexibility, emotional delivery, and naturally bright personality, which quickly made him one of the most recognizable performers of his generation.
Fun facts
San is often called the “mood maker” of ATEEZ because he effortlessly lifts the atmosphere during practices and interviews.
Although his hometown is Namhae, he was born in Jinju since there were no nearby hospitals at the time.
He has an older sister named Haneul, born in 1995, whom he has mentioned fondly.
His nickname “Sanjook” originated from early video content and stuck with fans.
San comes from the royal Choi Clan of Gyeongju, a historical lineage in Korea.
He debuted with ATEEZ on October 24, 2018, under KQ Entertainment.
He has a noticeable love for plushies and even carries one named Shiber with him at times.
San owns a cat named Byeol, which fans frequently ask about during live streams.
He once auditioned for MIXNINE but did not advance.
During childhood, he spent more time with his grandparents, which he has said influenced his personality and values.
In high school, he played volleyball as a libero, contributing to his agility and reflexes.
His father owns a Taekwondo studio, and San himself holds a third-degree black belt.
Fans often comment that he resembles Ten of NCT in certain angles.
His special talents include strong vocals, whistling, and voice imitations, including artists like BOL4 and Naul.
His favorite foods are chocolate and meat, a combination he frequently mentions.
He enjoys listening to artists such as DEAN, Zion.T, and Justin Bieber.
He has read many books, with one recent title being What the Cat Taught Me at the Bottom of the Sorrow.
San particularly enjoys thriller and mystery novels, along with writing poetry for himself.
He frequently searches his own name on X/Twitter, something he has admitted humorously.
He and fellow member Wooyoung share matching tattoos reading “Amicus ad Aras”, meaning Friends Until the End.
One of his favorite memories in the United States was stargazing at Malibu Beach.
He enjoys trying new foods abroad and exploring local areas whenever touring.
His favorite color is purple, and his favorite season is autumn.
While he doesn’t enjoy accessories in general, he wears two meaningful rings — one family ring and one team ring.
San watches mukbang videos on YouTube and often jokes about late-night food cravings.
💬 Fan Perception & Community Sentiment
Among ATINY, San is widely viewed as one of the most emotionally expressive and physically dynamic performers in modern K-pop. Fans frequently highlight:His intense eye contact and fluid body control during choreography
The contrast between fierce stage presence and soft off-stage demeanor
His playful humor and affectionate fan interactions
His willingness to show vulnerability through poetry and reading habits
He is often described as someone who can transition seamlessly between charismatic powerhouse and comforting friend, making him both visually striking and emotionally relatable.
