Wonderful World Season 1 Episode 12
Upon learning that the culprit who killed Eun-min is Kim Jun, Seon-yul is overcome by feelings of betrayal and self-loathing. Soo-hyun is determined to uncover the truth behind Gun-woo's incident and begins to investigate step by step. Soo-hyun, Seon-yul, and Su-ho each move forward with their own plans.