Mika-chan innocently asks, "Do you know what a 'fella ekubo' is?" and replies with a curious "What's that?" before learning its meaning. A 'fella ekubo' refers to the dimple that forms on the cheek while giving a blowjob. She starts by sucking on fingers, then moves on to creating the fella ekubo with a penis. Even when using a vibrator, she skillfully and cutely performs the cheek dimple effect. Her erotic yet adorable charm shines through as she takes semen from her mouth with her hand and licks it clean.