It was always her. Days turned into weeks. Weeks turned into months. Months turned into years. & soon, years turned into decades. And finally he was reborn as a human.

He remembered the day he first saw her. She was breathtaking. He felt as if his worries were all gone. It was as if he was living in a peaceful world. Only for her to return home from a mission ; Hateful remarks were thrown at her, but he stood by her. For she was turned into a demon.

"Because she's my wife," - Hashibira Inosuke Tragedy fell upon their family. But Hashibira Inosuke would never give up. He would fight for the day when his wife recovers fully. And he vows to love her for all eternity.

"What's love? That's only something nee-san can feel, not me," Some say that there must be some luck in finding love. Some say that it will eventually come to you if you're patient enough. But when it comes to watching her older sister getting rejected, She has decided, love was definitely not for her. She was the opposite of her older sister, Kanroji Mitsuri. Her sister was a very emotional and passionate person, who is constantly complimenting people in her head. Whereas she? She didn't show any sort of those emotions to others. Except towards her older sister that she will always love dearly. That she pray for the day that she would eventually achieve the marriage she had always wanted. But what happens when her heart starts to beat for a certain beautiful yet manly Demon Slayer?