[PitaPita (Pita)] Shihai Kokuin Takabisha na Onna Majutsushi ga Shiranai Aida ni Omocha ni Sareru

A proud, big-breasted mage known as 'Sensei' has no idea that a cloth pressed over her face and a glowing heart-shaped brand etched above her crotch are quietly rewriting her—each morning she wakes with gaps in her memory and an uneasy feeling she can't explain. Her smug, faceless apprentice plays innocent while the domination seal sinks deeper, and the day comes when the brand's influence makes her throw herself on top of him, riding with sweat-slicked, aggressive desperation she doesn't understand. As he teases the haughty sorceress about being so 'backed up' and promises to use his brand-new toy every single day, her dignity crumbles one glowing heartbeat at a time.