Toward the film's ending, it is revealed that his sister Pearl is pregnant as a result of an incestuous action between the two of them.
As punishment for violating the prohibition, they were forced to marry each other and so that night she sexually united with her younger brother.
She: Revolutionary Tough Girl Culture.
While inquiring about his family, she discovered that her lover was actually her younger brother, who was born after she left the house.
He checks to see if I have messaged him almost everyday, but I try to keep it rated G.