Closed Seven (I)

is the first volume of the Closed Seven light novel series, written by Kaede Asamiya and Illustrated by Mami Surada. It was released under the Dengeki Bunko Imprint in December 2015.

Synopsis
Even if this is a game-it's not a naughty play !! The harsh death game has begun !! It was a closed beta test of a game that woke me up and forced me to participate. A total of 7 people including the main character were gathered. Some restrictions were placed on each, and the main character, the boy, had lost his name and his memory of the past. However, for some reason, it is my face that is reflected on the monitor and declares the opening of the game. While being treated as a mastermind by other girls, the quest starts automatically. In this game, instead of damage, clothes were taken off, and nakedness = forced disqualification ...  Who brought this member to the game for what purpose?!?

(source: Dengeki Bunko Official Website - Translated)