When the first genuine snowflake, as light as a feather, stuck to the rusty iron roof of Black Iron Town, Robin stood by the window for a long time.
The snowflake quickly melted, leaving a small wet mark, as if it had never existed. Her cerulean eyes gazed at the gray sky, but deep within her pupils, another silent storm was reflected—a cold and clear assessment of survival.
The subject of the assessment was the girl by the stove, sorting herbs—Seraphilia.
The purpose of the assessment was singular: to determine her value in this cruel world, and... when to discard her.
Robin's thoughts raced like a precision instrument.
The value was evident.
A stable ability to acquire resources was a miracle in this town where everyone was hungry.
Food, fuel, medicine, and even books that were useless to others, Seraphilia always found a way to obtain them, her methods unknown, but the results effective.
Secondly, there was strength.
Robin had seen the instantly formed ice spear, sharp enough to pierce a heart.
Seraphilia possessed a Devil Fruit ability that created low temperatures and ice crystals, and she was honing it in an almost masochistic way.
This meant that, in the short term, Seraphilia was a reliable safety barrier.
More importantly, her behavior was relatively stable.
She left in the morning and returned in the evening, her emotions restrained, like a machine with a set program, rarely deviating.
And at the core of this machine's program, there seemed to be a special attention to 'Nico Robin'.
The motive was a mystery, but this was precisely the greatest point of leverage, ensuring that she always remained at the top of Seraphilia's resource allocation priority.
However, on the other end of the scale, the risks were just as heavy.
The core motive was unknown, a Damocles sword hanging over her head.
All the 'good' could be a carefully planned investment, waiting for the moment to be repaid with interest.
Her connection with the underground clinic, her unabashed use of her abilities, could attract unwanted attention, and for the 'child of the devil', any extra attention was fatal.
And there was Seraphilia herself, her scarred past, her eyes heavy with a maturity beyond her years, which could be a huge source of danger.
Finally, the most hidden risk—emotion.
Robin warily discovered that she had begun to develop a slight habitual dependence on the warmth of the small room, on the aroma of the hot soup.
This would soften her judgment, a poisonous vine that must be cut.
The assessment ended.
Robin's eyes regained their deathly stillness.
The conclusion was clear: in the desperate situation where the 'child of the devil' was wanted by the World Government and her own wings were not yet fully developed, Seraphilia was the driftwood with the highest cost-effectiveness that she could grasp at the moment.
The practical benefits she provided far outweighed the potential risks.
Thus, the course of action was clear: maintain and utilize the current symbiotic relationship, extracting all resources necessary for survival; at the same time, like the most patient hunter, continuously observe, gather information, and never invest any unnecessary emotion; and accelerate learning, constantly increasing her own 'value' until she had the strength to leave at any moment.
The snow outside fell heavier, temporarily concealing the dirty world in a blur of white.
Robin turned away from the window, picked up the book 'Common Ancient Language Characters', curled up in the warmest spot by the stove, and opened the pages.
When Seraphilia returned with a chill and new firewood, she saw this scene: the stove crackling, the girl wrapped in a blanket, quiet as a porcelain doll, intently reading by the firelight, as if the storm and the world's dangers had nothing to do with her.
Seraphilia paused, knowing the calm exterior hid tumultuous thoughts and precise calculations.
She did not disturb Robin, silently stacking the firewood and beginning to prepare dinner.
Tonight's thick soup was luxuriously made with smoked meat, beans, and roasted potatoes. The aroma of the food soon filled the small space, dispelling some of the chill.
Robin looked up from her book, her gaze passing over Seraphilia's busy, slightly thin figure, and then falling on the pot of bubbling soup.
She closed the book, stood up, walked to the old cabinet, took out two coarse ceramic bowls, carefully rinsed them with boiling water, and then silently placed them side by side on the small wooden board by the stove.
This was a natural action, but it signified the solidification of a certain pattern.
She formally accepted Seraphilia as the 'provider' and began to participate in this non-verbal 'ritual' of survival.
Seraphilia's hand, ladling the soup, paused imperceptibly in the air.
She turned her head, her ice-blue eyes flickering with a faint, indecipherable emotion, as fleeting as the stove's reflection.
She said nothing, only pushing the bowl with more meat and fuller soup gently towards Robin.
There was no thanks, no pleasantries.
Robin took it, blew on the steaming heat, and began to sip.
It was warm, and the taste was more layered than before.
Seraphilia's'skills' were improving, whether in cooking, or... something else.
The two ate this simple dinner in silence by the stove. The storm howled outside, madly beating against the wood, but inside the small house, the stove, the food, and their steady breathing created a strange, fragile sense of security.
Robin knew this security was an illusion built on shifting sands. But at this moment, it was real warmth.
She would seize this warmth, use it, make herself live better, until... the truth was revealed, or she found a safer next 'reliance'.
This was Nico Robin's way of survival.
Cruel, but effective.
***
The storm showed no signs of stopping, instead turning into a full-blown blizzard as night fell.
The wind whipped the snow, like countless white demons, madly lashing at Black Iron Town.
The small house's doors and windows rattled, and even with felt and wood reinforcements, the bone-chilling cold seeped in like a poisonous snake.
Seraphilia checked the doors and windows, then silently added another thick blanket to Robin's bed.
'The firewood might not be enough,' she said, looking at the smaller than usual flames. 'If it gets too cold in the second half of the night, we'll need another solution.'
Robin nodded.
The blizzard meant they would have much more time together than usual.
This was both a crisis and an opportunity.
An opportunity for deeper 'observation'.
The first few hours passed in suffocating silence. Seraphilia used every means to conserve heat, even attempting to use her ability to create a small, invisible 'heat-collecting cloud cover' above the fireplace, reflecting more heat back into the room.
Robin silently noted this detail—her use of her ability had reached the level of daily energy conservation, her control more precise than Robin had imagined.
But the firewood was inevitably running out.