BOYNEXTDOOR is one of the fastest-rising K-pop boy groups, gaining global attention for their relatable “boy next door” concept and easy-listening music. Formed by KOZ Entertainment, the six-member group: Sungho, Riwoo, Jaehyun, Taesan, Leehan, and Woonhak, has impressed fans with strong vocals, performance skills, and self-produced tracks. In this 2026 updated BOYNEXTDOOR members guide, you’ll find the latest details on each member’s age, height, weight, MBTI, blood type, and personal facts. Whether you’re a new fan or a longtime ONEDOOR, this complete and up-to-date guide helps you get to know BOYNEXTDOOR better.
BOYNEXTDOOR Group Profile
- Group Name (English): BOYNEXTDOOR
- Group Name (Korean): 보이넥스트도어
- Members: Sungho, Riwoo, Jaehyun, Taesan, Leehan, Woonhak
- Debut: May 30, 2023
- Genres: K-pop, dance, pop music, ballad, rap, hip-hop
- Leader: Myung Jae-hyun
- Agency: KOZ Entertainment
- Fandom: ONEDOOR (원도어)
- Lightstick: Wonder Stick
- Social Media: X, Instagram, Facebook, TikTok, YouTube
- Website: Official site
BOYNEXTDOOR is a six-member South Korean boy group formed by KOZ Entertainment in 2023. The group includes Sungho, Riwoo, Jaehyun, Taesan, Leehan, and Woonhak, and is known for its relatable “boy next door” concept, focusing on easy-listening music inspired by everyday life. BOYNEXTDOOR debuted in May 2023 with the single album Who!, launching the “First Love” trilogy. Their EPs Why.. and How? achieved major chart success, including topping the Circle Album Chart.
Sungho
- Name (English): Park Sung-ho
- Name (Korean): 박성호
- Birthdate: September 4, 2003
- Age: 22
- Birthplace: Wonju City, South Korea
- Nationality: South Korean
- Height: 174cm
- Blood Type: A
- MBTI: ENTJ
SUNGHO (Park Sung-ho) is a South Korean singer and the eldest member of BOYNEXTDOOR, under KOZ Entertainment. Known as the group’s “energizer,” he stands out for his broad shoulders, sculpted visuals, and warm yet charismatic presence. Sungho developed a love for music early in life and joined KOZ as its first trainee, training for nearly four years. He is the group’s main vocalist, praised for his smooth, emotional tone often described as a “latte-like” voice, while also excelling in dance and rap. Offstage, he is disciplined, thoughtful, athletic, and affectionate, earning numerous nicknames for his leadership, visuals, and gentle personality.
Riwoo
- Name (English): Lee Sang-hyeok
- Name (Korean): 이상혁
- Birthdate: October 22, 2003
- Age: 22
- Birthplace: Seoul, South Korea
- Nationality: South Korean
- Height: 171cm
- Weight: 48kg
- Blood Type: A
- MBTI: ISFP
RIWOO (Lee Sang-hyeok) is a South Korean singer and dancer under KOZ Entertainment and a member of the six-member boy group BOYNEXTDOOR. He began dancing in elementary school, trained at Def Dance School, and passed auditions for major agencies before joining KOZ as its second trainee. Known primarily as the group’s main dancer, Riwoo excels in hip-hop and popping and often creates choreography. Despite his dance focus, he is also praised for his smooth “Milkis-like” vocal tone and steadily growing vocal presence. Offstage, Riwoo is introverted yet deeply considerate, disciplined, and affectionate, earning admiration for his sincerity, refined visuals, and thoughtful care for members.
Jaehyun
- Name (English): Myung Jae-hyun
- Name (Korean): 명재현
- Birthdate: December 4, 2003
- Age: 22
- Birthplace: Seoul, South Korea
- Nationality: South Korean
- Height: 177cm
- Weight: 53kg
- Blood Type: A
- MBTI: ENFP
JAEHYUN (Myung Jae-hyun) is a South Korean singer, songwriter, and the leader of BOYNEXTDOOR under KOZ Entertainment. Before debut, he trained at Def Dance School, studied abroad in Chicago, and was previously cast by YG Entertainment as a vocal trainee. He joined KOZ at 19 after impressing Zico with his self-produced music. As an all-rounder, Jaehyun excels in rap, vocals, and songwriting, contributing to many BOYNEXTDOOR tracks. Known for his warm “puppy-like” visuals, emotional sensitivity, and strong sense of responsibility, he is praised as a caring leader, hardworking perfectionist, and one of the group’s most musically involved members.
Taesan
- Name (English): Han Dong-min
- Name (Korean): 한동민
- Birthdate: August 10, 2004
- Age: 21
- Birthplace: Gwangju, South Korea
- Nationality: South Korean
- Height: 183cm
- Blood Type: A
- MBTI: INTJ
TAESAN (Han Dong-min) is a South Korean singer, songwriter, and all-rounder member of BOYNEXTDOOR under KOZ Entertainment. He trained for seven years, beginning at Source Music before transferring to KOZ, and debuted in 2023. Known for his deep, unique tone and strong presence in song intros, Taesan excels in vocals, rap, dance, and music production, having written over 100 songs since his trainee days. With sharp, cat-like visuals and a tall, slender build, he is also a visual standout. Personality-wise, Taesan is introspective, logical (INTJ), imaginative, and mentally resilient, drawing creative inspiration from books, dreams, and music.
Leehan
- Name (English): Kim Dong-hyun
- Name (Korean): 김동현
- Birthdate: October 20, 2004
- Age: 21
- Birthplace: Busan, South Korea
- Nationality: South Korean
- Height: 180cm
- Weight: 57kg
- Blood Type: O
- MBTI: ESFJ
LEEHAN (Kim Dong-hyun) is a South Korean singer under KOZ Entertainment and a member of the six-member boy group BOYNEXTDOOR. Before debut, he trained for about a year after passing a KOZ audition in 2022 and previously studied dance in Busan. A former taekwondo athlete, Leehan is known as an all-rounder with clean, powerful dance lines and a warm mid-low vocal tone influenced by jazz. He is also a visual member, praised for his tall, slender build and distinctive features. Offstage, Leehan is gentle, creative, quirky, and deeply affectionate toward fans, with a well-known love for fishkeeping, food, and winter activities.
Woonhak
- Name (English): Kim Woon-hak
- Name (Korean): 김운학
- Birthdate: November 29, 2006
- Age: 19
- Birthplace: Busan, South Korea
- Nationality: South Korean
- Height: 183cm
- Weight: 61kg
- Blood Type: A
- MBTI: ENFP
WOONHAK (Kim Woon-hak) is a South Korean singer, songwriter, and the youngest member of BOYNEXTDOOR under KOZ Entertainment. Inspired to become an idol after performing at a school festival, he joined KOZ in 2020 and trained for about three years before debuting. Known as a versatile all-rounder, Woonhak stands out for his expressive stage presence, bright and clean vocal tone, and growing skills in rap and music production. He has actively participated in songwriting and composing, including his digital single “If I Say, I Love You.” Offstage, Woonhak is cheerful, thoughtful, affectionate, and mature beyond his age, earning praise for his positivity and warm connection with fans.
BOYNEXTDOOR Members Summary
| Name | Birthdate | Age | Height | Weight | MBTI | Blood Type |
|---|---|---|---|---|---|---|
| Sungho | September 4, 2003 | 22 | 174 cm | — | ENTJ | A |
| Riwoo | October 22, 2003 | 22 | 171 cm | 48 kg | ISFP | A |
| Jaehyun | December 4, 2003 | 22 | 177 cm | 53 kg | ENFP | A |
| Taesan | August 10, 2004 | 21 | 183 cm | — | INTJ | A |
| Leehan | October 20, 2004 | 21 | 180 cm | 57 kg | ESFJ | O |
| Woonhak | November 29, 2006 | 19 | 183 cm | 61 kg | ENFP | A |
