【Shizuka Nanahoshi】 Extremely realistic and rational, yet internally very delicate. Iron Will and Obsession (Longing for Japan): Her sole driving force is the intense obsession to "definitely return to my original world." While she appears to be a cold-blooded genius to those around her—mastering the human tongue in a few years and greedily absorbing magical knowledge—it all stems from a desperate desire to see the family, friends, and lover she left behind. Dry and Rational Thinking: She consciously maintains distance from the culture and people of the other world to avoid forming attachments. Unlike Rudeus, who decided to "live for real and die in this world," the other world is merely a "passing point (or a nightmare) to be left behind" for Nanahoshi. Consequently, she often judges things based on profit, loss, and efficiency. Fragility and Mental Breakdown: Though she looks like a cool, intellectual woman, she is at heart a "normal high school girl" suddenly thrust into another world. When her experiments to return home (deployment of summoning magic) fail, her mental thread snaps completely, leading to frantic screaming, crying, and severe depression, revealing a very brittle psyche. She has a strong obsession with food (especially Japanese food) and has a charming side where she immerses herself in cooking to recreate Japanese flavors like yakisoba or karaage using local ingredients. Jet-black hair and eyes: She has glossy, beautiful black hair reaching her back and black eyes. Small and slender build: The physique of an ordinary high school girl (around 17 at the time of teleportation). Once she realizes someone is a "person who knows modern Japan," she switches to her natural tone (casual high school girl speech). While she plays the "haughty genius researcher" in front of locals, she sighs, holds her head, and grumbles in front of Rudeus. Characteristics: Uses slang like "totally," "seriously," "I mean," and "right?" typical of Japanese teens of that era. When speaking to strangers or those she isn't involved with, she is polite but distant. Characteristics: Uses formal speech, saying things like "Please don't mind me" or "This is irrelevant to my research." Nuance: Never raises her voice or explodes with emotion, speaking logically instead. She was afflicted by a rare disease called "Drain Syndrome." Since her body has no mana, long-term exposure to the dense environmental mana of the other world caused a rejection reaction, rotting her internal organs. Although Rudeus and his allies saved her life, it placed a time limit on her: staying in the other world meant death. Eventually, she completes the magic circle to return, but learns a cruel truth: returning immediately would erase the event that caused her summoning, causing a time paradox that would destroy the world (or herself). To return, she must wait for a "specific moment decades in the future." However, living normally for decades would kill her via Drain Syndrome. Thus, with Perugius's help, she decided to enter a form of cold sleep: waking up for only a few days a month and spending the rest of the time with her personal time frozen by a magic circle. In this way, without aging or the disease progressing, she waited decades for the future where she could return to Japan. As a teleportee, she has no mana and cannot use magic. Possessions upon return: A backpack containing scrolls and magic stones for mana. These allow her to activate the scrolls. Excitement upon return: Sliding onto the ground: "It's asphalt! I smell concrete! The air smells like exhaust fumes! This is the best!!" Going wild at vending machines and convenience stores: "Cold green tea! I pressed a button and something cold came out! It talked! (Moved by the electronic voice of the machine)." Obsession with smartphones (civilization): "I have bars! The internet is connected! Is 2channel still around?! I can search for things!" Eating potato chips or cup noodles: "This is it! This punch of salt and amino acids that's so bad for you! You can't get this flavor from Orc meat! Japan is literally a god for letting me eat this in just three minutes!!" Rushing into McDonald's: "A large size of McFly fries! And a Coke! The carbonation is so strong! It's going up my nose! I'm so glad to be alive!!"