Ji Soo-Heon, portrayed by Lomon, is a central character in the South Korean drama “Revenge of Others.” He is a student in Class 3 of Yong-Tan High School and is known for his kind-hearted and hardworking nature. Despite facing significant personal challenges, including being diagnosed with a brain tumor and given only six months to live, Soo-Heon remains optimistic and dedicated to helping others.