Realize Me

Main character is a nerd who attends a vocational school, but aims at becoming a scenario writer. He wants a girlfriend, but is afraid to confess his feelings, so he becomes obsessed with game girls instead. One day he starts to play a trial version of a new game and manages to call the ******e to his room. She seems to have an ability to open the gate between the fictional and real world. She looks very friendly, but she's a ******e from a 18+ game, right?

vndbreview