Oshite Damedattanode, Hiitemiru Koto ni Shitanodesuga

The story is about a young girl who falls in love with Noel, the heir of the Count's family, when she was a student. She tries to practice her love technique of "pulling back" by casting a restriction spell on herself, and begins to act cold toward Noel, but... she never expected to be asked to marry him out of the blue...?