"Kimi o Aisuru koto wa Nai" to Itta Koori no Majutsushi-sama no Kataomoi Aite ga, Hensou Shita Watashi datta

Fiene, a count’s daughter, is overlooked by her own family—but she hides a secret: she’s a legendary witch, the most powerful in the kingdom! She enters a political marriage with the handsome heir, Sion, who bluntly declares he will never love her. At first, Fiene is relieved, thinking their arrangement will leave them both free. But she soon discovers that the person he truly adores… is her witch persona!