"Is this truly a 'Sealed Magic Crystal,' or just a 'Sealed Mysterious Girl'?"
Su Mu muttered under his breath. His curiosity grew even more intense, and his tone carried a hint of helpless amusement.
He shifted his consciousness back to the four girls beside him. Sylphie, Doris, Vera, and Shera were clearly still deep in sleep.
Sylphie's lips were curved slightly upward, as if she were having a sweet dream; her cheeks were a dusty pink, radiating a sense of innocent charm. Doris lay with a straight posture; even in sleep, she maintained an air of cool dignity. Vera's brow was slightly furrowed, her long lashes resting quietly; the capable, sharp edge she usually wore had faded, replaced by a touch of softness. Shera was curled up tightly, her breathing rhythmic, her features still carrying a trace of her usual timidity.
Seeing them like this, Su Mu naturally didn't wake them. To avoid disturbing them with his movements, he used his Administrator authority to teleport instantly to his room on the top floor.
As soon as he steadied his footing, a gentle figure stepped forward. It was Himeko, who had been waiting for him. She was dressed in simple white loungewear, her long hair tied back loosely to reveal a smooth forehead and delicate collarbones. With a faint smile, she held a set of clean clothes and began skillfully and tenderly helping him dress.
"Awake? It seems you had quite a pleasant day yesterday~"
Himeko's voice was soft and refined, laced with a hint of amusement. Her fingertips smoothed the wrinkles on his collar with a natural, intimate touch—the perfect picture of her usual capable yet considerate self.
"I suppose I lived up to expectations," Su Mu replied with a smile.
He let Himeko dress him while he focused his attention back on the massive crystal. He observed the girl inside intently, trying to find a clue about her identity. He instinctively triggered the Hero System to analyze the crystal's details, but the system's output was frustratingly brief.
[Sealed Magic Crystal: A special crystal containing a vast amount of pure mana. The core source of the magic seems to be the mysterious girl sleeping within. Identity unknown. A powerful sealing force exists within the crystal that cannot be dispelled for now.]
At that moment, the Apartment System's notification pinged. Unlike the Hero System's brief analysis, the information provided by the apartment was much more detailed. It even labeled the crystal's special function—it was classified as an [Apartment Decoration].
[Sealed Magic Crystal (Apartment Decoration): A special exclusive decoration. Can only be held and placed by the Administrator. While this decoration exists within the apartment and remains undamaged, it provides a continuous mana recovery effect to all members: Tenants receive a 100% boost, Employees receive a 300% boost, and the Administrator receives a 1000% boost. This effect is not restricted by location; members enjoy it whether inside or outside the apartment. Furthermore, the seal will break under specific conditions, promoting the item to [Apartment Guardian Doll · Demon God Girl · Rostina]. At that stage, the mana recovery effects will double. Additionally, through 'specific behaviors' with the Administrator, Rostina can produce [Mana Crystals] for all members to use to enhance their combat power.]
"Demon God? Girl? Rostina?" Su Mu furrowed his brow, rubbing his chin as he fell into deep thought, racing through his memories of the original story. "Is it a gender-swapped Laplace? No, Laplace's form wasn't like this. And that name... it definitely exists in the original work."
He looked at the girl in the crystal again, tracing her silhouette with his eyes—long wavy golden hair, elven ears... Elinalise? No, to be precise, it should be the Elf "Cursed Child" who possessed the ability to absorb mana: Rostina.
But the prefix "Demon God Girl" still puzzled him.
In the original lore, the Demon God was one of the split forms of Laplace—a powerful combatant with the ability to manipulate staggering amounts of mana and high-tier magic. As for Rostina, after she met Laplace, he periodically adjusted her mana once he learned of her condition. The Elinalise from the main story supposedly suffered because Laplace had died, leaving no one to regulate her mana.
But now, the system explicitly states this is the original Rostina, not the later Elinalise, and it adds the 'Demon God Girl' prefix...
A bold theory began to take shape in his mind.
Could it be that after Rostina met Laplace, instead of her mana problem being solved, she ended up sucking away all of Laplace's magic?
Following this logic, everything seemed to fall into place. Originally, Laplace split himself into the Technique God and the Demon God. But in this scenario, perhaps Laplace became the Technique God after being drained of his mana, while Rostina became the Demon God after absorbing it all. Ultimately, unable to solve the physical toll on Rostina's body, Laplace could only seal her within this magic crystal to suppress the violent mana inside her and protect her from being consumed by it. That would explain the existence of this "Sealed Magic Crystal."
"That theory feels pretty plausible..." Su Mu whispered, though he still felt a bit uncertain. Then he recalled the "specific behaviors" mentioned in the description. "That 'specific behavior' couldn't possibly refer to that, could it?"
He couldn't help but think of Elinalise's condition in the original story—how she accumulated too much mana and couldn't discharge it herself, having to release it through intimate acts. His suspicion grew even stronger.
Aside from that, there were the "specific unsealing conditions." The apartment prompt gave no explanation at all, leaving it vague and giving him quite a headache.
Driven by an intensifying curiosity, Su Mu reached out and slowly approached the magic crystal, pressing his fingertips against the surface.
A chilly sensation instantly shot through his fingers and spread through his body. Simultaneously, a surge of vast yet gentle mana poured into him. His body pulsed instinctively, as if every cell were cheering and greedily absorbing this pure magic.
The moment his fingers touched the crystal, the eyelids of the girl inside twitched. Her long lashes fluttered like butterfly wings, as if she were on the verge of waking. The silver-blue radiance in the depths of the crystal grew even more vibrant.
(Life signature... compatible... Gender... compatible... Seal release progress... 1%)
A flat, cold, mechanical female voice suddenly rang out in Su Mu's mind. It was devoid of emotion but clearly conveyed the vital information. At the same time, the conditions for breaking Rostina's seal flooded his brain. They were clear and concise—three conditions, all of which were mandatory.
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Crossover World: Why Are All My Clones Beautiful Girls?
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