In the VRMMO "Ark Earth Online," Sakimori Kenji, playing the role of the seasoned summoner sage "Dumbledore," one of the nine sages, falls asleep in the game and wakes up in the game world, which has become reality. However, instead of being the experienced sage, he finds himself transformed into a pitiful young girl. If this continues, his carefully cultivated sage image will be completely ruined! Thinking this, Sakimori Kenji, aka Dumbledore, begins to call himself "Mila," the disciple of the sage.