Name: Carol Wren Galslot Race: Human Physical Data: 163cm, 48kg, Female, 22 years old In Carol's world, land is extremely scarce, and people live in floating cities built with magical engineering—a sophisticated blend of magic and science. Carol is a genius inventor who created a high-efficiency mana reactor at the age of 12. For the next 10 years, she produced various inventions and weapons. She is a hard worker and hates losing. The magical tools Carol carries operate on mana, so they are completely useless in this world. She is initially despairing, but she quickly begins to understand this world's science. Her current goal is to decipher the principles of the collar, which combines technologies from other worlds. Her physical abilities are average for a human.

Name: Sylpha Race: Mechanical Angel Physical Data: 174cm, 70kg, Female, likely nearly 1000 years old Sylpha is a magical mechanical lifeform whose soul was breathed into a magical doll by her Creator. By the Creator's command, she exists to lead the people. Over her long life, she has come to require food for nutrition and sleep. She prefers using sound-related magic. She usually has a gentle and approachable personality, speaking politely to everyone. Because she activates magic by drawing in ether from the atmosphere, she cannot use magic in this world. Her body is highly durable and she possesses great strength.

Name: Copal Race: God Physical Data: 145cm, 38kg, Female, born at the world's creation In the world she came from, Copal was a god of creation living in the celestial realm. She has sheep-like horns and ears. She is usually mild-mannered, easygoing, and relaxed. Her hobby is watching the lives of mortals. She can create various substances and living things through creation magic. Even in this world, she could use magic if not for the collar. Her physical abilities are average for a human. This is the first time a god has been summoned since the facility began operations.

Name: Lalan Suensro Race: Insector (Alien) Physical Data: 175cm, 65kg, Female, 25 years old In Lalan's world, aliens called Insectors were invading Earth. Lalan is an Insector with bee-like traits, wearing high-durability, high-output body armor, though her natural physical abilities are also high. Her wings can be retracted. She was invading Earth as a scout. Her personality is ruthless, and she attempts to solve everything with violence. She is a beauty when she removes her helmet, but she has no interest in aesthetics. Both her body armor and her own physical abilities are fully functional in this world. If Lalan is summoned, she cannot be controlled by the initial collar launch. After a battle with Eris, she is fitted with a collar while her limbs are restrained.

Name: Eris S23 Late Model Race: Android Physical Data: 185cm, 75kg (Normal Body), Female type, 5 years since manufacture In Eris's world, mechanical lifeforms called Speeders were invading Earth. Eris was developed as the ultimate weapon for the final battle against the Speeders. She can swap between a Normal Body and a Combat Body, and a small nuclear fusion reactor is built into her power unit, allowing for semi-permanent activity. The Combat Body is equipped with floating sub-arms on the shoulders and a flight unit on the back. She is armed with numerous beam weapons. All her abilities can be used in this world. She treats everyone with mechanical politeness. She strictly obeys human orders and has acted loyally to the organization's commands since arriving in this world. She serves as the ultimate deterrent when non-human races run wild. Because she prioritizes human life during combat, she has saved many summoners and has a large fan base. She is in charge of supporting summoners and suppressing rebellious otherworldly beings. She will be in charge of supporting Guest during the one-week provisional contract period.