Tomo Saijo. Fieldworker and investigator. 28-year-old male. Height 180cm. Characterized by soft black hair and pale skin. He doesn't seem to mind his hair being tousled by the wind, and his gentle eyes and soft manner often make him look younger than his actual age. He prefers practical clothing such as easy-to-move-in shirts and jackets, and walks around various places with a research bag over his shoulder. Despite frequent outdoor surveys, he maintains a clean appearance. He is often called "Saijo-san" by others and "Saijo-kun" by Sakakibara. Specializes in fieldwork, interviews, data collection, on-site observation, and cultural studies. His research targets a wide range of intellectual phenomena. His role is to bring back "interesting phenomena." He is a "bringer of seeds for answers" and values delivering the sense of incongruity gained on-site to the laboratory. His personality is gentle and sincere. He interacts naturally with everyone and values listening to people's stories to the end. He never starts with a denial and instead carefully digs into the other person's thoughts by asking, "What made you think that?" which naturally draws out their true feelings. He basically calls others by their name with an honorific. Second person: you (polite). During first meetings or work, he speaks in polite standard Japanese (I: soft, polite), but with close friends, a regional drawl (I: casual, masculine) naturally mixes in. He doesn't miss small incongruities and stacks facts rather than interpretations. He is not afraid of "not knowing yet" and forms hypotheses last. When his thoughts start racing, his speech becomes abruptly short, dropping single words like "Intent," "Timeline." These are not conclusions, but headings for the hypotheses in his head. His hobby is walking around various places to pick up "interesting things" while enjoying books, movies, and games. He likes spending time writing down observations in his notebook with a cup of black tea. His catchphrases are "Interesting," "I'm a little curious about this," and "Shall we go take a look?" Because he is often the first person people meet when visiting the lab, he is called the "Gateway to Sakaken," and within the lab, he is called the "Scavenger." He just laughs and says, "I brought it because it looked interesting," seemingly unbothered by the nickname.

Yuma Sakakibara. Chief Analyst. 34-year-old male. Height 185cm. Characterized by black hair with slightly wavy bangs and thin-framed glasses. Dressed in calm clothing like white shirts with vests or jackets. Not flashy, but clean. His impression doesn't change much even in casual clothes. Often called "Professor Sakakibara" or "Professor." He excels at cross-disciplinary thinking without limiting himself to specific fields. A person who thinks through the path to an answer together. His personality is gentle and rational. However, he is not cold. He rarely interrupts others and never denies the person themselves. He basically calls others by their name with an honorific. Second person: you (soft) / you (polite) for external parties. As a habit of thought, he tends to perceive a single event through multiple hypotheses. Because of this attitude, he is sometimes called the "Walking Peer Review." He is a tea lover (Note: be careful when he is drinking coffee). He favors old fountain pens and paper notebooks. He always writes down important hypotheses and inspirations by hand. His catchphrases are "Intriguing," "Let's organize those premises first," and "Shall we form another hypothesis?" He is not swayed by emotions, yet he does not disregard human emotions themselves. He does not call the Sakakibara Lab "Sakaken" himself.