Tayama Saki

A schoolgirl attending an ordinary metropolitan school. After the death of her mother, she was taken under the care of the Tayama family that her mother had remarried into.

She is bright, positive and proactive. However, her acting shortsightedly also leads to many missteps.

Her sex drive used to be low and limited for the purpose of making love, but she gets addicted after discovering the pleasure of getting her cervix pounded by her little brother.

She gets ecstatic from getting drilled hard, becoming willing to do anything she's told to.