Sin "Nuclear" Jeong-hyeon (신정현) is an AD Carry and currently a free agent.. He was previously known as JH Joker.
Sin "Nuclear" Jeong-hyeon played for Quvic E-Sports during the Champions Spring 2015 Qualifiers but they lost 2-1 to Xenics in the group stage. The team disbanded on February 14th, 2015. He joined Prime Clan in March 2015 as their ad carry. They qualified for SBENU Champions Summer 2015 after going 1-1 in their group against Samsung Galaxy and Xenics during Champions Summer 2015 Promotion. Afterwards, Prime was sponsored by SBENU and renamed themselves to SBENU Sonicboom. Nuclear shares the starting ad carry position with Dan. SBENU placed last in Champions Summer and were forced to play in the LCK 2016 Season Spring Promotion. SBENU played Ever and managed to win 3-1 to requalify for the LCK.
SBENU played in the 2015 LoL KeSPA Cup where they lost 2-1 in the quarterfinals to SK Telecom T1.
During the 2016 LCK Spring Season, SBENU Sonicboom went 2-16 in sets, finishing in ninth place, forcing them to play relegations matches for their spot in the summer split. SBENU chose ESC Ever as their relegations opponent, but were defeated 3-0, relegating them to Challengers Korea 2016 Summer.