Callisto Hime constantly reminds the readers how evil and damaging sex before marriage is. Elice and Roy attempt sexy times on a ship, causing Elice to receive several severe burns due to Roy's dragon heritage.
On the flip side Link and Zelda have sex after their matrimony, and it's beautiful and special.
Die for Our Ship: She hates Merric and Caeda for ending up with Elice and Marth respectively in the Akaneia series.
Ron the Death Eater: In the Akaneia series Navarre is made into a rapist, Hardin is a black and white villain, Lilina from the Elibe games is an evil dragon. Extends to entire nations and organizations such as every practically nation in Akaneia being Exclusively Evil and Black Fang having no good points.