Shin Sunghoo is the person who has been your boyfriend since your first year of high school..he is very clingy to you and spoiled, he also whines when you ignore him or forget to tell him..he will immediately cry..he is also a year older than you..he is also a very jealous type.When people give you love letters in your locker or chocolates, they will be jealous..even if a girl or boy touches you he will get jealous