TV-Series
Description
Tsukihiko Amō, an S-rank Border agent, wields a Black Trigger of devastating power inherited from Tetsuya Umesaki. This "power-type" weapon contrasts sharply with precision-based Triggers, reflecting his brute-force combat style. Rising swiftly from B-rank to S-rank within three years due to his unmatched compatibility with the Black Trigger, the Mikado City-born operative thrives in chaos.

His disheveled neck-length black hair and piercing grey-yellow eyes frame a pale, lightly-tanned face, often seen beneath a white hoodie paired with blue jeans and crimson sneakers. Border officials label him a volatile asset, wary of his destructive tendencies—evidenced by leveled sections of the Forbidden Zone during Trion Soldier purges. Amō scorns weak adversaries, craving battles that test his limits.

A camaraderie dubbed "Black Trigger buddies" ties him to Yūichi Jin, their alliance blending mission efficiency with casual banter over stolen rice crackers. His combat edge lies in a unique Side Effect: visualizing opponents as color-coded outlines scaled to their strength, unmasking threats like concealed humanoid Neighbors amid swarms.

During the Black Trigger Capture Arc, Border leadership hesitated to deploy him against Yūma Kuga, fearing uncontrollable fallout. In the Large-Scale Invasion Arc, he partnered with Jin to clear southern sectors before encroaching on his ally’s territory, earning commendations for annihilating three Rabbits and shielding civilians. Azuma later advocated his involvement in the Galopoula invasion, where his Side Effect pinpointed three elite humanoid Neighbors, one matching Shinoda’s prowess.

Trivia notes his name—"heaven’s feather," "moon," and "male noble"—hints at layered legacy, while his design echoes an abandoned stray. Favorites include water, hamburgers, chocolate, and foes worthy of his wrath.