Ecstas Online (エクスタス · オンライン, Ekusutasu Onrain) is a light novel series written by Masamune Kuji and illustrated by Tsukune Hira being published in Kadokawa Sneaker Bunko of Kadokawa since September 1, 2016.
As of March 2018, five volumes have been published.
Main article: Ecstas Online (manga)
A manga adaptation illustrated by Kakashi Oniyazu began serializing from the September 2017 issue of Monthly Dragon Age magazine on August 9, 2017. The first volume has been published on March 1, 2018.