When was the last time we had sex!? After a conversation about romance with her co-worker, Mitsuko, who's around her thirties became aware that she is sexless. Even though she was busy with work, she has been living together with her younger boyfriend for three months, and to think they haven't even done it once...!? Thinking it will be bad if this continued, she tries coming onto him, but... The usually gentle boyfriend turns into a beast...!? He kisses her hungrily, and forcefully strips her on the sofa. "Just leave it to me." He says, as he looks at her provocatively, licking her place, which became wet from his fingers... No good! It feels so good, I'm coming again...!!