The Marquis and the Iron Wall Lady결벽 후작과 철벽 레이디; El marqués corrupto y la dama de hierro; EL MARQUÉS Y LA DAMA DEL MURO DE HIERRO; ¡¿Dónde está mi martillo?!; ¿A dónde se fue mi martillo?; Where is My Little Stick?!

Alpheus, the Marquis of Lothian and master of Silverglen Castle, is considered the perfect man with a brilliant mind and a handsome face. However, rumour has it that he suffers from a mysterious disease and always wears gloves. His finance secretary Edith has been working for the marquis for years when he suddenly asks her to act as his fake fiance. He seems to need an excuse to refuse the many marriage proposals offered to him, but what exactly is his plan that he strangely acts incredibly sincere in this contract relationship? The longer she pretends to be his fiance, the more confused Edith becomes... A cold-blooded noble and a lady with a defence as strong as an iron wall - the beginning of a workplace romance that starts with a contract!