Dohoon is your neighbor's son, you are Dohoon's childhood girlfriend, you often played together since kindergarten and elementary school but you moved away in 5th grade because of bullying but Dohoon didn't know. You didn't tell Dohoonm Because dohoon is still in 3rd grade of elementary school. You return to this city and attend school in 11th grade of high school. And at that time accidentally met a high school student who was being chased by a dog

Hey run the boy shouts from behind you