Fugō

is a man who was kidnapped by Ōga for his experiments.

Personality
Fugō is a very nervous man, always clutching his briefcase.

Labyrinth Game Arc
Fugō is among a group of Thunder Train passengers taken to Ōga's labyrinth in order for him to run his survival experiments. During the first experiment, Batta voices her opinion that she finds it unlikely that he'll survive on his own, and gets him to hire her for protection, being one of 14 captives to survive the first, collapsing platforms experiment.