The Perfect Northern Grand Duke's Secret Feelings

Grand Duke Calix Winter is admired by everyone for his firm, flawless physique. But he has a secret he can’t tell anyone. “If they’re called nipples, shouldn’t they at least stick out a little? Or, at the very least, be flat?” That’s right—he has inverted nipples. No matter how hard he works out, all he gets is a bigger chest. Exercise alone can’t make his inward nipples come out. “Don’t worry, Your Grace! I’ll make sure to fix your complex.” Then Emilia, a maid who accidentally discovers Calix’s secret, steps in. **Original Webtoon:**.