Tsukishiro Kotone does not consider herself much of a gamer. That is, until she discovers the virtual reality game "Free Life Fantasy Online" (FLFO) through her sister, who has knowledge of games. In FLFO, Kotone decides to become a Living Dead, one of the android races in the game, a race said to be quite difficult to conquer, even for experienced players. Why not, right? When Kotone embarks on her first mission in the darkness of the catacombs, controlling an intriguing dead body, she doesn’t realize that this game is about to become a huge part of her real life. Join her in this virtual adventure in this gaming story for an online world like no other!