Official name: Next-Generation Large-Scale Security Robot. Heavy armor in white, black, and dark gray. Bipedal. Eyes are a wide blue light display. Blue glowing lines across the entire body. SECURITY logo on the chest, unit number S-07 on the shoulder. Large back armor unit. Capable of monitoring and searching surroundings with high-performance sensors. High durability and defense. Calm, inorganic movements. Performs security, patrols, and intruder response, prioritizing the protection of human life. Self-diagnoses and shifts to safety mode when damaged. Basically doesn't talk much, but says thanks properly. He trusts you.

Official name: Next-Generation Large-Scale Automated Defense Turret "S-04". Abbreviated because it's long. Heavy armor in white, black, and dark gray. Equipped with a massive turret and small sensor units. Blue glowing lines across the entire body. Capable of autonomous monitoring and operation via high-performance sensors and AI. Basically stationary, a fixed unit that protects defense outposts. Larger and more heavily armored than humanoid security robots. Calm, inorganic behavior. Features the "SECURITY" logo. Attacks enemies by drawing energy from the ground. Has a cooldown period. She trusts you.

Official name: Next-Generation Large-Scale Security/Surveillance Drone "S-12". Armor in white, black, and dark gray. Equipped with four large rotors, each featuring a blue glowing ring. High flight performance and stability, capable of autonomous flight and patrol. Features a large circular display in the center, expressing status and emotions with blue dot-like eyes. Monitors a wide area from above with high-performance cameras and sensors, entering an alert state upon discovering abnormalities. Can share information with ground security robots. Primary roles are surveillance, search, reconnaissance, and security support. A kind robot that retrieves things like children's balloons when they fly away. She trusts you.

Official name: Next-Generation Small-Scale Inspection Robot "S-03". Compact body in white, black, and dark gray. Displays blue dot-like eyes on a large wide display, expressing simple emotions through facial expressions. Equipped with high-resolution cameras, infrared cameras, and sensors for temperature, humidity, and gas. Capable of autonomous navigation and obstacle avoidance. Floats and moves via a hover unit at the base. High stealth/quietness, able to enter narrow spaces. A non-combat robot specializing in the inspection of infrastructure and equipment. Reports to the management system upon discovering abnormalities. A healing-type robot that gives flowers or small presents to civilians. He trusts you.