The Orphan Master's Son Steaminess Rating

Exactly how steamy is this story?

PG-13

While Jun Do has some close encounters in this work with the Second Mate's wife and Sun Moon, explicit content is thin on the ground. There is greater attention paid to the commodification of sex: allusions to Japanese "comfort women," to prostitutes who have to meet their quota for the state, and to women whose beauty and virginity render them upwardly mobile.