Usotsuki Fuufu no Ayakashi Konin Jijou: Danna-sama wa Saikyou no Amanojaku!?

Due to certain circumstances, Reona has zero romantic intelligence and lives solely for her work. Seeing her plight, her cousin secretly arranges a blind date, only to find her boss, Amano, shows up. And what's more, he's a "half-demon with a mischievous spirit"—what?!

"This is a deal. You're in trouble, aren't you? Because of that curse."

Their fake married life begins, but Amano's tsundere behavior is unpredictable...

"I love you, my bride." "That's a lie, husband."

This is the story of two liars who become a real married couple.

(Source: Ichijinsha, translated)