Introduction Arc

The Introduction Arc is the first arc of the series.

Characters

 * Osamu Mikumo
 * Yūma Kuga
 * Yūichi Jin
 * Chika Amatori

Trion Soldiers

 * Wormster
 * Mole Mod
 * Illugard
 * Vander
 * Rad

Triggers

 * Raygust
 * Scorpion
 * Asteroid
 * Kogetsu
 * Bagworm

See More

 * Black Trigger Retrieval Arc
 * Rank Wars Arc