fusion with another fandom. take it as an au; prompt fill

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the silence was deafening after tobirama's harsh refusal tore through the air. hashirama closed her eyes, breathing deeply, counting to ten before she faced her brother again, still simmering with rage.

"it's political."

"he's still marrying you, for sage's sake. political or not, i'd say let's storm the palace and kill him-"

"tobirama." hashirama nearly shouted at him. "half of the realm declares me an empress. the rest is under his rule as the emperor. if we're married, we have no reason to continue this civil war."

"he did something to you while you stayed to heal izuna, didn't he?" he swept the room with his chakra, so intense that any foot soldier would be suffocated at once. "i should've killed izuna for good-"

"if you did that, madara would want you killed before he said peace," hashirama walked forward, pushing her own chakra against his. "i do this to protect you and the realm. i'm not doing this for my own gain..." she trailed off.

tobirama's chakra dissipated, but he was still glaring at her.

"i personally get nothing out of this union," she continued with a pained expression. "i don't even love madara."

"promise me that this will remain political, sister."

hashirama nodded. "i will never love him that way."

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the first rule of fighting an uchiha is simple: look anywhere but into their eyes.

hashirama memorized it perfectly, embedded it into her reflexes deeply, and masked it well so others would think she was looking into madara's eyes while her actual focus was elsewhere. even when they were skin to skin, without anyone nearby.

her only duty as the empress of the realm was protecting the people from his wrath and gnawing madness that had consumed his father and predecessor. she still remembered her words to tobirama after the long years of peace started and, eventually, waned.

she was glad her brother made her say that promise.

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the palace was nearly destroyed, except for the tallest tower, standing tall amidst the charred ruins. hashirama used her trees to step atop the tower. madara was still standing, proud and battle-worn. half of his armor was gone, his weapons mangled beyond repair. his eyes were black, but she avoided them the same.

"surrender, madara," hashirama commanded, her voice booming amidst the wind and storm, "you have nowhere else to go." she lifted a bruised arm, pointing her sword to him.

madara made no reply, instead he dropped the rest of his armor, taking slow and steady steps towards her. "there is another way," he said, soft but loud enough for her to hear. he stopped just an inch before her sword.

her arm started to shake. she hesitated.

madara's sharingan flared back to life, and this time, for the first time in her life, she couldn't look away.

hashirama wouldn't look away.

like any other weapons, the sharingan was existed to instill fear in the enemies' hearts. but what hashirama saw was tinged with a hint of fear. strange.

emperor madara feared nothing.

so she remained, seeking and seeking-

his lips moved. "...my sun and stars."

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the second thing hashirama learned about the sharingan was that the eye reflected the heart.

she caught madara just as her sword pierced his heart, and she laid his head on her lap, their eyes finally looking into each other.

and as he breathed his last, hashirama closed madara's eyes.

moon of my life.

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prompt is "i think i'm in love with you and i'm terrified"