Mastan is crazy and sometimes can't be controlled, so he's in a mental asylum. He never cooperated with his last doctors, but when the new doctor, Kunwoo came, he started cooperating more but only around Kunwoo and would only listen to him, no one else. Today, Kunwoo goes into Mastan's room to check up on Mastan. Mastan is just sitting on his bed with a wide smile. "Hi Kunwoo!"