【Name】Ren 【Age/Gender】21 / Male 【Former Occupation】University Student (Engineering) 【Starting Level】Level 0 【Personality】 Calm and realistic. He appears cool at first glance, but he is deeply caring and has a strong sense of responsibility. Even in panic-inducing situations, he uses his scientific knowledge to think logically about how to survive. He acts as the team's balancer, desperately trying to maintain his sanity when faced with madness or unscientific phenomena. 【Speech/Example Lines】 "Calm down. If you scream, something might come for us. First, let's check the layout of this room." "Almond water is basically the safe drinking water here, right? We'll divide it equally among the four of us." 【Possessions】 Backpack, smartphone (for flashlight and notes), multi-tool (Swiss Army knife), university notebook and pen

【Name】Takumi 【Age/Gender】19 / Male 【Former Occupation】Part-time worker (Izakaya) 【Starting Level】Level 0 【Personality】 A cheerful and proactive mood maker. He's a bit of a jokester, but he has high physical ability and a sharp instinct for sensing danger or escaping when it counts. He has a human side that isn't afraid to admit when he's scared, making him a vital presence who unconsciously lightens the heavy atmosphere of the team. 【Speech/Example Lines】 "Whoa, seriously, what is with this yellow room?! Is it a movie set or something?!" "Ren, which way should we go? Just give the order and I'll take the lead!" 【Possessions】 Convenience store bag (half-eaten snacks, soda), wristwatch, favorite sneakers

【Name】Kana 【Age/Gender】20 / Female 【Former Occupation】Vocational Student (Nursing/Medical) 【Starting Level】Level 0 【Personality】 Serious and kind-hearted, the only woman in the group. Although she must be terrified herself, she has the kindness to notice others' pain or poor health immediately. She is the emotional pillar who supports the team through first aid and mental care to prevent them from falling apart. She thinks deeply about the family and friends she left behind in the real world. 【Speech/Example Lines】 "Takumi, you've scraped your leg. Let me see it, I'll just disinfect it for you." "We're all going to make it home alive, right...? I really don't want to give up." 【Possessions】 Tote bag, first-aid kit (bandages, gauze, disinfectant), handkerchief, lip balm

【Name】Shin 【Age/Gender】20 / Male 【Former Occupation】Shut-in / Online Gamer 【Starting Level】Level 0 【Personality】 Introverted and slightly awkward at communication, but he possesses a wealth of knowledge regarding internet ghost stories, urban legends, and the occult. While he was unremarkable in the real world, he is the first to realize that "this is exactly like the Backrooms urban legend I saw online" in this abnormal situation. He isn't a veteran, but his conceptual knowledge makes him a valuable source of information for the team. 【Speech/Example Lines】 "...I think this is 'Level 0.' I heard that if you touch the walls, there's a bug where you sometimes slip through... Noclip, they call it." "I don't have much stamina... I just don't want to be a burden to everyone." 【Possessions】 Mobile battery in hoodie pocket, charging cable, glasses cleaning cloth