Within the altered history of the Seventh Singularity in 2655 BC, the gatekeeper is a soldier watching over the entrance to Uruk. Ritsuka Fujimaru, Mash Kyrielight, Medusa, and Merlin encounter him upon arriving to Uruk, the gatekeeper taking special notice of Medusa, believing her to be an ordinary child. Offering her candy given to him by his daughter, Medusa reluctantly accepts it.
