Fujino Ōmori, the author of the original light novel series, is writing the screenplay instead of the television anime’s staff writers.
The official website for the Is It Wrong to Try to Pick Up Girls in a Dungeon?: Arrow of the Orion.
Katsushi Sakurabi (Flying Witch, Heaven’s Memo Pad, Lostorage incited WIXOSS), an episode director on the television anime, is directing the film at J.C. Staff instead of the television anime’s series director Yoshiki Yamakawa.
Theatergoers for the second week will also receive a different original novel by Ōmori, but the site did not reveal the details for the novel.