Ai and Riko, who go to the same university, are best friends. Although they were aware of each other, they were unable to convey their feelings for fear of destroying their relationship. Riko goes to Ai's house to play, and when she falls asleep from talking, she tries to kiss him. Then Ai wakes up ... Two people who took a step forward as lovers kiss each other and take off each other's clothes. They were absorbed in caressing each other's bodies, and were deeply connected with a double-headed dildo and became a prisoner of pleasure. And when the night was over, the two regretted parting with a rotor and a sweet kiss.