The characters receive an email from Ovan requesting them to go to Δ Hidden Forbidden Festival where a mysterious summer festival is set up. There they encounter an AIDA Chim Chim who wishes to peacefully co-exist with the players of The World. It then transforms into the word "Returner", which Haseo assumes it to mean that Ovan will return to The World.
Direction
Mashimo's quiet, contemplative send-off to beloved characters
Writing
Ovan's absence speaks louder than any dialogue

Director
Koichi Mashimo
Trivia, insights & behind the scenes
Returner was bundled with the final G.U. game remake as director Koichi Mashimo's farewell to the franchise before his death in 2023.
The festival setting references Japanese Obon traditions—honoring spirits who return temporarily, mirroring the series' obsession with digital ghosts and lost players.