Is It Wrong to Try to Pick Up Girls in a Dungeon?: Arrow of the Orion

The goddess Artemis seeks an adventurer she calls Orion at Orario's Holy Moon Festival. By drawing a magical spear from a crystal, Bell identifies himself as Orion. Artemis needs Orion to wield the spear to defeat the monster Antares, which had been sealed away in the Ruins of Elsus on the opposite side of the continent from Orario, but has recently broken free. The Hestia Familia undertakes a quest to defeat Antares, meeting Ryū and the Hermes Familia on the way to Elsus.