By chance, they met again. He didn't know her, and she didn't know him. By chance, they made a contract to "live together" in the same room. He was a rookie, she was a witch, and he was "exploited and ravaged" by her. The long river of memory will leave its mark even if it flows endlessly. He secretly fell in love with her, and so did she, but... The knot in his heart? It wasn't until her sister's "surprise" that she suddenly discovered that nine years of longing for him had already been sent to her. But... Misunderstanding, where should she go?