Is .hack//G.U. Returner hentai?

OVA · 2007 · 1 episodes · PG-13 - Teens 13 or older

Adventure, Drama, Fantasy, Video Game

The characters from previous .hack//G.U. Games and .hack//Roots receive an email from Ovan. He is requesting them to go to Hidden Forbidden Festival where is set up a mysterious summer festival. There they find an AIDA Chim Chim who wishes to peacefully co-exist with the other players of The World. It then transforms into the word "Returner", so they assume it to mean that Ovan will return to The World. (Source: ANN)