Myself ; Yourself Sorezore no Overture

The novel is written as a prologue to the game by Takumi Nakazawa, who has also written scenarios for Ever17, and Memories Off 2nd, and is illustrated by Wadapen. Each chapter centers on one of the six heroines; chapters one through six are arranged as follow: Nanaka, Aoi, Syuri, Yuzuki, Hinako, and Asami.

(Source: Wikipedia)