Yukari is a good and caring female boss. The protagonist, Tsuruma, is in a relationship with Yukari but he hasn't taken the first step into a so-called adult relationship... One day, the two of them went out for drinks after work and they started talking about their hobby of gaming and before they knew it, it was late into the night. "We still haven't talked enough..." "Oh! Shall we go to the second bar?" "Maybe somewhere a little quieter would be better..." French kissing, tit fucking, cowgirl position... The two of them enjoyed each other's bodies at the hotel and then Yukari... "Let's hold off for the rest of the day and come to my place on Sunday and have lots of fun...?" Yukari and Tsuruma spent a day in agony. When he opened the door the next day, he founds Yukari in a bold cosplay costume...!