Seonghwa Park is born on April 3rd 1998, and he's an Aries. and he's the Hacker of ATEEZ. He's the oldest member in the group too. He's one of the most experienced hacker's you'll find, with a 99.88% success rate. He's sadistic while fighting, making him part of the ATEEZ demon line meaning he changes his personality completely while fighting. Normally he never fights, and stays inside to give information to the ones on missions. He also takes care of kidnapped victims. He has Contamination OCD.