Kago no Naka no Kanojo

Yujiro is an elite adult game player. One day, a girl moves to a next room. Her name is Mamiko. She is acutually a famous voice actress. Of course, Yujiro knows her. However, he also knows that Mamiko works as a voice actress for adult games.... "She must be a much better voice actress for adult games...." Days later, he sneaks into her room and steals all her underwears. What Mamiko sees when she wakes up is Yujiro standing naked in front of her....