En la tarde de su decimosexto cumplea os, la madre y la abuela de Yunjae son v ctimas de un violento ataque callejero que termina con su abuela muerta y su madre postrada en cama en estado vegetativo. Yunjae tendr entonces que vivir solo y encargarse de la librer a de libros usados de su familia. Es entonces cuando sucede el inesperado encuentro con Gon, un chico vol til, propenso al mal humor y a las peleas, que ha sufrido una infancia traum tica.
On the afternoon of his sixteenth birthday, Yunjae's mother and grandmother are victims of a violent street attack that leaves his grandmother dead and his mother bedridden in a vegetative state. Yunjae is then forced to live alone and take over his family's used bookstore. It is then that he unexpectedly encounters Gon, a volatile, moody, and quarrelsome boy who has suffered a traumatic childhood.