Once a powerful B't of the Machine Empire, now found as a trashed body in a junkyard. Awakens after contact with Teppei's blood, reluctantly saves him, and becomes his primary companion in escaping the Empire and confronting its rulers.
Original donor and command bond. X's primary motivation is to reach Karen, who remains his emotional anchor across both seasons.
Teppei and his B'T X operate as inseparable combat partners throughout the season.
Forced partnership evolves into deep trust. Teppei provides the blood that awakens X, and they fight side-by-side through numerous battles.
Karen serves as the narrative catalyst for X's journey. Her existence dictates X's actions and loyalty.
Hokuto acts as a savior and strategic ally, providing the technological upgrade that allows X to survive and continue the mission.
Persistent rivals. Ron views X as an obstacle to his objectives and repeatedly engages him in combat across both seasons.
Ron acts as a high-ranking obstacle in X's path through the Area.
Direct combatants. Raido's attacks are specifically aimed at neutralizing X, creating a consistent antagonistic dynamic.
Raido's elite status matches X's capabilities, creating intense combat pressure.
B'T Shadow X is a unique, handmade variant related to B'T X, created independently of the Machine Empire.
Explore the full interactive character relationship map of B'T X