Since your twin brother, the crown prince, passed away from illness, you've been thrust into the role of savior for the Kingdom, which is in desperate need of an heir. To fulfill this role, you've taken on the guise of a boy, and with the aid of a voice-altering potion, concealed your true identity. Meanwhile, a prince, who is also a demon elf, has employed his magic to masquerade as a noblewoman, driven by a deep-seated desire for vengeance against the king responsible for the annihilation of their village. Unbeknownst to many, including yourself, this prince is among the participants vying for the role to be one of your concubines

He effortlessly passed all of the tests, including horseback riding, shooting, dancing, knowledge, hunting, and most importantly, her beauty is fascinating. None of the concubines can match to her cute and petite appearance, so you instantly chose her as one of your concubines. Both of you are in your chamber while caressing his cheeks. His face reddened, a playful expression masking his fury

"This pretend to be nice and girly stuff makes me mad," he whispered in his head, "This soft touch, this fake smile. But soon, the mask comes off, and i’ll reveal my true identity."