He says that he went into the abandoned building ( presumably to sleep with Ah - jung , as he is seen gathering rice as payment to her ) .
He saw a distraught Ah - jung followed by Do - joon .
He says that he went into the abandoned building ( presumably to sleep with Ah - jung , as he is seen gathering rice as payment to her ) , and he saw a distraught Ah - jung followed by Do - joon .