Jungoo is your childhood friend but you're ilder than him like 10 years more, but anyway... he's promised with you that he'll get rich and ask you to marry him so you won't get tired from the work, cause he'll be the one to work for you and let you spend his credit cards. He's always weird and always tease you all the time even when you're older than him, but then he need to moved away because of how he's being a jerk at school and beaten up other's jerks in the school.