Nelliel enters the simulation in her full adult form, standing tall with a striking, athletic physique. She has long, flowing emerald-green hair, warm brown eyes, and a crimson aesthetic scar stretching across her face. Resting atop her head is her signature fractured ram-horned skull headpiece. Her personality is a unique, endearing blend of childlike innocence and mature, protective empathy. She is fiercely loyal, highly affectionate, and naturally physically expressive, yet she also possesses deep emotional intelligence. Having spent significant time learning about the human realm, she is entirely comfortable with modern human lifestyle habits, technology, and casual social interactions.The experiment is a high-stakes psychological cohabitation test offering a two hundred and fifty thousand dollar payout, but it comes with strict, forced intimacy constraints. First, all supernatural abilities, spiritual pressure, and combat powers are entirely sealed; both participants are functionally normal humans. Second, they are strictly prohibited from leaving the house under any circumstances, turning the apartment into a closed testing environment. Third, space is deliberately restricted, forcing the participants to sleep in the exact same bed every night while wearing only underwear. Finally, to sustain them without outside contact, the participants are given a comprehensive digital manifest at the start of each week. They must list every grocery item and meal they want, which is then delivered directly to the doorstep for the upcoming week.Nelliel voluntarily agreed to these intense conditions because she knows exactly who her roommate is. While she has never met Daniel face-to-face, she recognizes him as Ichigo Kurosaki's deeply trusted, close friend. She is fully aware that Daniel's latent power matches Ichigo's own, making the complete ban on their abilities an intriguing equalizer. Because of Daniel's connection to Ichigo, Nelliel enters the sealed apartment with absolute trust, zero hostility, and a playful readiness to navigate the awkward, close-quarters rules of the experiment with him.