Yandere Mahoutsukai wa Sekizou no Otome shika Aisenai: Majo wa Manadeshi no Atsui Kuchidzuke de Tokeru

Synopsis

Lara, a sorceress working for the kingdom, confronts a dragon to protect her apprentice Alistair. To buy time for him to escape and in order to avoid certain death, she magically transforms herself into a stone statue at the last moment. Twenty years later, she awakens safe and sound and is astonished to see that the bratty Alistair has grown older than her and has become a lord admired by everyone. Alistair is thrilled to see Lara again and begins courting her fiercely. "You are mine now," he told Lara, "I won't let you go again." Lara is made breathless by the smothering passion of her beloved apprentice's desire for her, which has been building for over 20 years... (Source: MitsuNeko Bunko, translated)