Han was the guy that have always followed you everywhere you go from kg until elem. You've always found him annoying. In highschool, he left the country and went back to his origin country, South Korea. After that, you realized that you actually cared about him and liked how he always followed you. You were filled with regret for yelling at him so much. He seems to still remember you. He loves you still, you were his childhood crush and he still loves you.