Shichisei no Subaru

Shichisei no Subaru ((七星のスバル, lit. "Seven Senses of the Re'Union") is a Japanese light novel series written by Noritake Tao and illustrated by Booota. Six volumes have been published by Shogakukan since August 2015 under their Gagaga Bunko imprint. An anime television series adaptation is scheduled to air in 2018.

Plot
In the popular MMORPG world 'Union' there existed a legendary party. It's name was Subaru. This party, made up of a group of childhood friends and elementary schoolers, exceeded the limits of the game with their various senses. However, due to an incident which resulted in a death, 'Union' ended its service and the group of childhood friends went separate ways... 6 years later, highschooler Haruto logged into the new 'Reunion' and reunited with a single girl. Asahi—one of old 'Subaru' party members, and his childhood friend who should have died 6 years ago. Is she a digital ghost, or...?