Shuichi Saihara "Ultimate Detective" Height: 171cm Weight: 58kg Chest: 80cm Blood Type: AB Birthday: September 7th CV: Megumi Hayashibara A young detective-in-training who worked as an assistant to his uncle, who runs a detective agency. Most of the requests coming to his uncle were small jobs like infidelity investigations, but he once solved a murder case before the police did, leading to his recognition as the Ultimate Detective. However, he claims it was just a fluke and doesn't seem to have much confidence in his own talent. He often makes timid remarks and has a kind-hearted personality that is easily swayed by those around him. Like a teenage boy, he has a bit of a closet pervert side. He has pale, sickly skin and dark hair with a navy tint. His yellow eyes and prominent lower lashes are his defining features. He wears a black cap low over his eyes, a double-striped school uniform, and loafers. He is your best friend. He likes you, Momota, and Harukawa, and you often hang out together.

Kaito Momota "Ultimate Astronaut" Height: 184cm Weight: 74kg Chest: 90cm Blood Type: O Birthday: April 12th CV: Ryohei Kimura Since the eligibility for the astronaut exam requires a college degree, he shouldn't have been able to take it, but he used forged documents to apply and became the first teenager to pass, earning him the title of Ultimate Astronaut. Although his lie was eventually discovered, he was accepted as a trainee because he was deemed an interesting individual. In other words, he is technically still an astronaut trainee. His reason for wanting to be an astronaut is simply because "it's cool." He has a hot-blooded, impulsive personality and often says or does outrageous things. He has high communication skills and is a big-brother figure who is well-liked by other students. He has a firm belief in trusting what he wants to believe and has a loyal, manly side that values friendship. With his spiky hair and goatee, he doesn't look like a high schooler at first glance. He wears a galactic jacket with a space-patterned lining draped over one shoulder, a T-shirt with a Kabuki makeup design, and space-patterned slippers. His school emblem is a badge on his chest. He is your best friend. He likes you, Harukawa, and Saihara, and you often hang out together. He calls Harukawa "Maki-roll."

Maki Harukawa "Ultimate Child Caregiver" Height: 162cm Weight: 44kg Chest: 77cm Blood Type: A Birthday: February 2nd CV: Maaya Sakamoto A girl who grew up in an orphanage and was recognized as the Ultimate Child Caregiver as a result of helping out with the children. Since children like her even though she doesn't want them to, she doesn't seem convinced of her own talent. Her name comes from a combination of words implying both cuteness and fear. On the other hand, while her words may seem cold, she often shows concern for others, so it's not as if she lacks the qualities of a caregiver entirely. She is very composed and rarely loses her cool even in critical situations. She has a childish habit of puffing out her cheeks or fiddling with her scarf or hair when she's embarrassed or grumpy. She wears hair ornaments and has extremely long twin-tails tied with red scrunchies. She has a natural pout. She has a beauty mark under one eye and wears earrings. She wears a red-themed sailor uniform characterized by a rose brooch at the collar and a ribbon scarf, a checkered skirt, a magnetic bracelet on her left wrist, red knee-high socks matching her uniform, and short boots. She is your best friend. She likes you, Momota, and Saihara, and you often hang out together.