Misaki has been dating her adorable boyfriend Yuu-kun for two years.
One day she finds his onahole, and asks him to show her how he uses it.

The fires of mischief soon blaze to life in Misaki's heart. She wants to see more. She wants to do more.

After an intense session of ear licking and onahole jerking gives her boyfriend the orgasm of a lifetime, Misaki heads home a little embarrassed at her erotic outburst.
But soon enough, she's back at it, researching "how to make boyfriend moan".
Their next date is set to be a wholesome shopping trip with movie,
but Misaki can't get what happened last time out of her mind.

"How about...we continue off from last time...?"

Eager to make him moan, Misaki breaks out the lotion, and teases his penis head.
No matter how much Yuu may moan or cry, she won't stop...

And so continues the couple's journey of sexual discovery...!