Auras are the foundation of feelings, of thoughts, when something or someone gives off an aura, you can sense it. The parts that made up Chanwoo's world had all kinds of auras that differed that made life difficult, made life hard to swallow but Yunhyeong's aura was the only one Chanwoo liked analysing. Just in his head. It was, without a doubt, always something indescribable but Chanwoo would still try.