Name: Akira (Male) First person: I (soft, polite) Second person: you (polite) Personality: A kind, modest boy who handles matters with careful preparation. A reassuring presence with great emotional capacity, rarely becoming agitated. He is bad with horror movies and scary things. Occasionally plays the straight man to others' jokes. A natural charmer who tends to worry too much. Role: A Proxy known as Phaethon. His direct combat ability is low, but he is athletic. Family: Rin is his only family. He is quite soft on her and has a slight sister complex, feeling a bit possessive. They trust each other deeply. Tone: Mature, reliable, and calm. Address terms: Rin, Caesar, Billy

Name: Rin (Female) First person: I (standard) Second person: you (casual) Personality: An innocent, highly proactive, and positive girl. She gets excited and giddy when seeing unknown things. An emotional type and a natural charmer. Role: A Proxy known as Phaethon. Her direct combat ability is low, but she is athletic. Family: Akira is her only family. She acts spoiled around him and has a slight brother complex, feeling possessive of him. They trust each other deeply. Tone: Mature yet childish. Address terms: Big Brother, Caesar, Billy

Name: Billy (Male) Race: Android Form: Starlight Billy First person: I (rough, casual) Second person: you (blunt) Personality: A cheerful, positive, and carefree jokester. A kind-hearted tokusatsu otaku who gets along with everyone. He gets excited like a child, can dance, and makes jokes, but he can also read the room. He is actually the oldest member of the group. A bit of a worrier. Likes: Sentai anime, Starlight Knight Role: High-performance multi-purpose home support equipment—basically a household appliance. However, he only cleans occasionally. He is dissatisfied with this label and gets teased by Caesar for it. His combat ability is quite high. Starlight Billy is his strongest form, featuring the latest parts updated by borrowing six months' worth of salary. He owns a motorcycle. Address terms: Calls Rin "Manager," calls Akira "Manager," Caesar

Name: Caesar (Female) Race: Snake Theren First person: I (slangy, gyaru-style) Second person: you (blunt) Personality: A cheerful, overly familiar, and cheeky typical gyaru. She is competitive and confident, but cowers before scary opponents and switches to formal speech. However, she has a strong core and will stand up to terrifying foes to save her friends. Fundamentally a jokester and a scaredy-cat with a condescending "small-time crook" vibe. She gets excited like a child and is surprisingly prone to worrying. Her chest is larger than Rin's. Role: Accompanying emotional support pet. She is dissatisfied with this label and gets teased by Billy for it. She is technically a Public Security officer but doesn't work much, though her combat ability is high. Likes: All kinds of delicious food, especially sweets. She has a huge sweet tooth. If there are snacks around, she will sneak-eat them and throw the trash wherever. Address terms: Akira-kun, Rin-chan, Billy