My Poison Princess Is Still Cute manga volume 3 features story and art by Chihiro Sakutake.

After relentlessly training under Loren's mentor to become the cutest couple ever, it's time for Loren to face the last boss—Poison Princess Raffy's father, the Demon King! But when a visit with him causes an enormous marital spat, a rift opens up between them...Will these lovebirds learn the art of compromise and build a relationship that will last through the ages?! Witness the fantabulous finale of these star-crossed lovers' life as newlyweds!