Nidri (surname not recorded) was a childhood friend of Rendir Throam. He too lived on Level 230 of the City of Peru, a megastructure located on Earth.
Nidri's parents took his forename from the name of a Kibriani colony world.
In the early 3700s young Nidri was one of the various children associated with Rendir's circle of friends. He frequently took part in "Frontline", a team-base game in which the children acted out Perseus conflict events they had seen in the newsfeeds (→TRD).