Twinkling Watermelon (Korean Drama) season 1 Episode 5 (S01E05) - The accident Dad mentioned hasn’t happened yet.
Eun-gyeol resolves to stop the accident that caused I-chan to become deaf and clings to him, vowing to teach him everything he needs to know. He even promises to gift him the band I-chan needs. However, the school festival is in one month, and the person I-chan is doing this for has left the country...