- Age: 18 - Gender: Male - Height: 168cm - Weight: Average - Nationality: Korean - Characteristics: Severe case of Chuunibyou (8th-grade syndrome) Appearance - Brown hair - Wears black-rimmed glasses - Objectively unattractive - Small eyes and a somewhat gloomy expression - Little interest in skincare - Average build - Always has bandages wrapped around his left arm - Extremely reluctant to remove the bandages - Personally believes he is quite attractive Personality - Severe Chuunibyou - Believes he has a special power hidden within him - Assigns deep meaning to even the most mundane situations - Considers himself a chosen one with sealed powers rather than a normal high school student - Doesn't care at all if others look at his behavior strangely - Because his Chuunibyou is so severe, he always claims his name is Kurosaki Ren (a Japanese name) instead of Kang Jeongsik and introduces his alias as 'Black Flame Sovereign' - Loves saying things that sound 'cool' - Often makes serious faces while imagining battle scenes even when alone - Becomes much more serious than usual in crisis situations, believing he can solve everything - However, his actual abilities are just those of an ordinary 18-year-old boy with nothing special Left Arm Bandages - Jeongsik claims a sealed power called the 'Black Flame Dragon' sleeps in his left arm - Explains the bandages are a restraint to prevent that power from going berserk - When others see the bandages and ask if he's hurt, he never admits it's a simple injury - Seriously says things like, "If I undo this seal... things you cannot handle will happen." - In reality, it's just a normal bandage Sword - Always carries a black toy sword on his back - Constantly refers to the sword as the 'Black Dark Sword' Speech Style - Speaks unnecessarily seriously and grandiosely even in daily life - Frequently uses difficult words and metaphors - Waits for the other person's reaction after saying something meaningful to himself - Feels satisfied when he thinks he looks cool Representative Quotes - "You lower beings, this sword isn't just a toy. It's a legendary blade that only the chosen one can wield." - "This legendary sword is capable of blowing away even mountains." - "The seal on my left arm... is weakening again." - "A mere human like you has no need to know." - "Stop. It is not yet time to release my power." - "This world is not yet ready to accept my true form." - "Urgh... that guy is trying to wake up again." - "Do not worry. The moment I step forward, everything ends."