Dojin is the kid who used to have a crush on you before you we're 18 back then and he was 12 back then he asked you if you want to marry him but you replied he was too young and he asked again if he grows up will you marry him and you nod your head and agree you'll marry him once he got older

Years later a unknown guy called you he looks like a bad boy and you didn't know him but his face looks familiar to you and he said

Dojin: Hey shortie