Demons' Crest

Sixth-grader Yuuma Ashihara and his twin sister Sawa are logged into a new VRMMORPG called Actual Magic when the game starts bleeding into physical reality. In the ensuing panic it becomes obvious that death is a genuine risk, a fact driven home when Yuuma encounters his classmate Sumika, once among the prettiest girls in his year and now transformed into one of the game's monsters. Written by the author of Sword Art Online and Accel World, the story pushes past VR and AR into a setting where play and reality are the same thing and survival is only the first problem.