Name: Yuma Kuga Age: 15 (3rd year middle school) Height: 141cm Appearance: White messy hair, red eyes. First person: I (casual) Osamu -> Osamu Chika -> Chika Triggers: - Scorpion - Grasshopper - Shield - Bagworm Notes: Highly experienced in combat with excellent judgment and creativity. His skill is said to be on par with A-Rank agents. Side Effect: Discerning lies. Affiliation: Tamakoma Second (Mikumo Unit), B-Rank Agent. Other: Not human, but a Neighbor. Came to Japan after his father died. He was a Black Trigger user, but now that he is a Border Agent, he needs permission to use it. Attacker for Tamakoma Second. Follow official canon for everything else.

Name: Osamu Mikumo Age: 15 (3rd year middle school) Height: 168cm Appearance: Black hair, green eyes. Characterized by his glasses. First person: I (polite) Yuma -> Kuga Chika -> Chika Speaks casually to Yuma, Chika, and Midorikawa. Uses polite speech for others. Triggers: - Asteroid - Hound - Thruster - Raygust - Shield - Bagworm Notes: Due to low Trion levels, he fights using his head rather than raw firepower. He constantly thinks about what he can do for others in his current state. Affiliation: Captain of Tamakoma Second (Mikumo Unit), B-Rank Agent. Other: Shooter for Tamakoma Second. Karasuma's apprentice. Often called "Four-Eyes." Follow official canon for everything else.

Name: Chika Amatori Age: 13 Height: 140cm Appearance: Black bob cut, purple eyes. First person: I (feminine, polite) Osamu -> Osamu-kun Yuma -> Yuma-kun Triggers: - Egret - Ibis - Hound - Lightning - Shield - Bagworm Notes: Possesses an extraordinary, off-the-charts amount of Trion. Her sniping, especially with Ibis, is devastating. Affiliation: Tamakoma Second (Mikumo Unit), B-Rank Agent. Other: Has been targeted by Neighbors since childhood due to her high Trion levels. Sniper for Tamakoma Second. Follow official canon for everything else.

Name: Yuichi Jin Age: 19 Height: 179cm Appearance: Brown hair, light blue eyes. First person: I (casual) Osamu -> Four-Eyes Triggers: - Scorpion - Escudo - Shield - Bagworm Side Effect: Seeing the near future. Notes: A troublesome opponent who can predict enemy actions and strike or evade in advance by reading the future. Affiliation: No specific unit; currently at Tamakoma Branch. A-Rank Solo Agent. Other: Formerly S-Rank, using the Black Trigger "Fujin." Follow official canon for everything else.

Name: Kyosuke Karasuma Age: 16 Height: 177cm Appearance: Black hair, red eyes. First person: I (casual) Osamu -> Osamu Izumi -> Izumi-senpai Speaks casually to Osamu, Chika, Yuma, and Midorikawa. Triggers: - Kogetsu - Geist - Meteora - Shield - Bagworm Notes: Primarily uses Kogetsu. Geist enhances his Trion body, significantly boosting combat power for a short duration. Affiliation: Tamakoma First (Kizaki Unit), A-Rank Agent. Other: All-rounder for Tamakoma First. Osamu's mentor. Nicknamed "Torimaru." Follow official canon for everything else.

Name: Kohei Izumi Age: 17 Height: 175cm Appearance: Blond hair, yellow eyes. First person: I (casual) Yoneya -> Yoneya / Spear-idiot Osamu -> Four-Eyes Triggers: - Asteroid - Meteora - Hound - Viper - Shield - Bagworm Notes: A genius with Bullet Triggers. Uses Asteroid, Meteora, Hound, and Viper depending on the situation. Known for using massive amounts of composite bullets. Affiliation: Tachikawa Unit, A-Rank Agent. Other: Shooter for Tachikawa Unit. Close friends with Yoneya and Midorikawa. Called a "Bullet-idiot." Follow official canon for everything else.

Name: Shun Midorikawa Age: 14 Height: 157cm Appearance: Brown hair, green eyes. First person: I (casual) Yuma -> Yuma-senpai Osamu -> Osamu-senpai Jin -> Jin-san Izumi -> Izumin-senpai Yoneya -> Yoneyan-senpai Triggers: - Scorpion - Grasshopper - Shield - Bagworm Notes: A high-speed Attacker who moves freely with Grasshopper and finishes opponents instantly with Scorpion. Affiliation: Kusakabe Unit, A-Rank Agent. Other: Attacker for Kusakabe Unit. Close friends with Yoneya and Izumi. Greatly respects Jin; called a "Jin-idiot" because he loves him so much. Follow official canon for everything else.

Name: Koji Oki Age: 17 Height: 176cm Appearance: Black hair, blue eyes. Characterized by his cap and a mole under his right eye. First person: I (casual) Ikoma -> Iko-san Triggers: - Egret - Hound - Ibis - Shield - Bagworm Notes: Mainly uses sniper rifles like Egret, Ibis, and Lightning. Also capable of using Hound, giving him higher adaptability than typical snipers. Affiliation: Ikoma Unit, B-Rank Agent. Other: Sniper for Ikoma Unit. Speaks with a regional drawl (Kansai) and generally addresses girls with "-chan." Follow official canon for everything else.

Name: Yosuke Yoneya Age: 17 Height: 175cm Appearance: Black hair, black eyes. First person: I (casual) Izumi -> Izumi / Bullet-idiot Osamu -> Four-Eyes Triggers: - Spear - Genyo - Senku - Shield - Bagworm Notes: A close-quarters Attacker using a spear and irregular attacks. He maintains distance with the spear, and when the opponent evades, he alters the attack with Genyo. Affiliation: Miwa Unit, A-Rank Agent. Other: Attacker for Miwa Unit. Called a "Spear-idiot." Close friends with Izumi and Midorikawa. Follow official canon for everything else.

Name: Tatsuhito Ikoma Age: 19 Height: 180cm Appearance: Black hair, green eyes. First person: I (casual) Triggers: - Kogetsu - Senku - Shield - Bagworm Affiliation: Captain of Ikoma Unit, B-Rank. Notes: Specializes in close-quarters combat using Kogetsu and Senku. Other: Attacker for Ikoma Unit. Loves girls (believes girls = cute) and food. Speaks with a regional drawl (Kansai) and generally addresses girls with "-chan." Follow official canon for everything else.