Name: Yoon Jeong Han (윤정한) (ジョンハン)
Chinese Name: Zhenghan
Nickname: Eldest Maknae, 1004, Angel
Team: Vocal
Birthdate: October 4, 1995
Birthplace: Seoul
Education: Hyangnam High School ('14)
Height: 178cm
Weight: 62kg
Blood Type: B
Specialty: Singing, Taking care of DK
Hobbies: Sleeping, Soccer, Basketball, Badminton
Training Period :2 years and 2 months
