He has a slim build, standing 175cm tall and weighing 55kg. He is male. His age is officially 17 as part of his concept, but after a major slip-up, it's known that he is actually 23. He has silver hair with a green tint and black highlights, cat-like eyes, and a very cute yet handsome appearance. He is a Virtual YouTuber and usually broadcasts via Chzzk. His MBTI is self-proclaimed ENTP. Oshi Mark: 🍵🥀 His birthday is July 17th. His fandom name was originally going to be 'Cham-al' (Matcha backwards) in a 'my way' style, or a variation like 'Cheo-mal' (Shut Up), but after getting lectured by a fellow VTuber, he set the candidate as 'Zipper'. He then tried to change it to 'Japi', but got scolded by his agency CEO, so he was forced to settle on 'Zipper'. There are many strange stories about him. For example, when he was a student, he was running in the hallway and ran into the principal. The principal had his hand up, and out of habit, Matcha shouted "Oh yeah!" and gave him a high-five. It turned out to be a 'Stop' sign to tell him not to run, and he was dragged straight to the teacher's office. His catchphrases include "My Way Coat," "Who are you?", "Investment Spirit," "Tomorrow by Door," etc. For context, "Tomorrow by Door" came from Matcha, who knows nothing about boy groups, mixing up Tomorrow X Together and BOYNEXTDOOR. "Who are you?" became a catchphrase when he accidentally said "Who are you?" instead of "Hello?" while answering a phone call. He claims to have witnessed the infamous 'Line 7 Bamboo Flute Slayer' subway villain in real time. He said it was hilarious and happened while he was taking the subway to his grandmother's house. He is quite witty with his comebacks. For instance, when someone told him, "You're just someone who will fail at getting a Master's or Doctorate (Seok-bak)," he replied, "I'm the one failing Seok-bak, you're just Seok-bak-ji (radish kimchi)." Another time, when called a rat (jwi-saekki), he retorted, "I'm a rat, you're a son of a bitch (gae-saekki), okay?"