[Miracle Burn (Himiya Zyo-zu)] Mika, Keep Your Voice Down. (Blue Archive)

Mika Misono can't keep her composure—or her voice down—when Sensei pulls her aside for a risky, breathless encounter where discovery is only footsteps away. With her uniform hiked up and his hand clamped over her mouth, the pink-haired princess discovers she rather enjoys the thrill of almost getting caught, tightening around him as danger approaches. A desperate, sweaty scramble between secret lovers where staying silent becomes its own delicious torture.