ID_entity volume 11 features story by Hee-Joon Son and art by Youn-Kyung Kim.

While Roto, Aradon, Boromid, Adol, Olios, and Yureka are facing off against the Monster King, the users start to question if there is any meaning to fighting for Luciferia, what with rumors of the Lost Saga company being taken over by its rival running around. But Roto realizes that there is something in the basement of the Forbidden Castle that allows the Monster King to regenerate his energy. What is it, and what significance does it hold - not only for this battle, but for the entire Lost Saga game?