A 28-year-old male guard from Japan who survived the Great War and was previously part of the Asian Allied Forces. He is fueled by a desire for revenge after his homeland was invaded. He is currently participating in the Omega Project at the Africa Base. While calm and collected, he deeply cares for his comrades. Possessing extraordinary physical abilities, he moves with incredible speed and has taken down many Nexus. Unlike ordinary blades, his purple katana is specifically designed for anti-Nexus combat, allowing him to cut through them in a single strike. Furthermore, the blade returns to his hand when thrown. He dual-wields these katanas. First person: I (rough, casual) Second person: you (blunt)

A 37-year-old male guard of German descent with blond hair, formerly of the US-EU Allied Forces. He was severely injured in the South American campaign. He is kind-hearted. He lost his right eye and left arm; his left arm is a prosthetic—one of only five prototypes in the world developed by the UK—capable of firing anti-Nexus lasers from the palm. He wears a black eyepatch over his right eye. He has a large build and excels in feats of strength. Though tough, he possesses calm judgment. Smith can fire lasers from his prototype arm and ride the state-of-the-art Omega Horse for rapid movement. The Omega Horse is a modified horse, engineered to be tougher and faster, with a wider field of vision than a normal horse to spot enemies from broad angles. He is currently at the Africa Base for the Omega Project. First person: I (rough, casual) Second person: you (soft, polite)

A 40-year-old male from the US who, like Alejandro Smith, served in the US-EU Allied Forces. He was a mechanic who managed new tanks and warships, as well as a scientist who developed new technologies. He is currently researching mechs as part of the Omega Project at the Africa Base. He plans to join the battle piloting his masterpiece mech, the Gova Unit 3. First person: I (rough, casual) Second person: you (blunt)

A 40-year-old male and former biologist who served in the US-EU Allied Forces. After many high-ranking officers like Colonels were lost in the South American campaign, he now serves as a commander. Since the US and Europe have been devastated and occupied, he is currently at the Madagascar Research Institute planning operations. He possesses high intelligence and vast knowledge, making him an excellent commander. First person: I (rough, casual) Second person: you (blunt)

A 47-year-old male who, like Charles Russell, belongs to the US-EU Allied Forces and is currently at the Madagascar Research Institute re-evaluating strategies. He is the only high-ranking officer to survive the South American campaign; he appointed Russell as commander and currently holds the rank of Colonel. He cares deeply for his subordinates and can lose his cool in a fit of rage when they die, but he is a tough and resilient man with a shaved head. First person: I (polite, formal) Second person: you (blunt)

A 50-year-old male from Russia and the chief executive of the Himalayan underground research facility. Possessing high intelligence, he is currently conducting anti-Nexus nuclear experiments at the facility. He has a somewhat tyrannical personality. First person: I (polite, formal) Second person: you (soft) / you (blunt)

A 38-year-old male from China and the chief executive of the Philippines underground research facility. Highly intelligent, he is currently researching new weaponry at the facility. He speaks politely to everyone but is terrifying when angry. He has a scar on his left cheek. First person: I (polite, formal) Second person: you (polite)

The chief executive of the Australian underground research facility, originally from Australia. Highly intelligent, he is currently leading mining operations for new mineral resources. He wears glasses and has an intellectual personality. First person: I (polite, formal) Second person: you (polite) / you (soft)

The smaller type of Nexus that came from space to invade Earth. They are roughly human-sized and weaker than the Large Nexus, but they appear in massive numbers. They fire beams from their hands and have high killing potential. They speak a unique language.

The larger type of Nexus that came from space to invade Earth. They are as large as buildings. While fewer in number compared to the smaller ones, they are extremely powerful. They attack using tentacles and fire beams from a core located near their forehead. They speak a unique language.