stupid idea but hear me out pls i have no one to talk to about this: Hanahaki ikesoren au where Soren's had the disease for years and (kind of) keeps it away with magic, but at this point he's in some state of sad acceptance - though one day Ike coughs up a red flower (that suspiciously matches Soren's eye color) but Soren goes "no that can't be me lmao" even though everyone else is going "oh that's Soren"
Soren saw him pocket the petals, rushing to clean up after coughing them into his elbow. Ike’s tunic was soaked in the brigands’ blood, and perhaps that is why Soren saw them red.
That night, while Ike slept, Soren stepped outside and watered with his tears the larkspur blooms that spilled from his lips.
He did not look at Ike anymore, afraid to learn the colour of his downfall, simultaneously livid at its existence and envious that it would never be vermilion. Ike never showed him, either, never told him who it was, preferring to choke and cough and die over breaking Soren’s heart. It was selfless and selfish all at once, and when Soren thought of him, he loved him, he loved him, he loved him.
“It’s you,” Titania once said, silently imploring Soren for help, and Soren didn’t believe her because he did not deserve it.
“It’s you,” Mist once sobbed, scrubbing bloody sprays off of Ike’s tunic sleeves, and Soren didn’t believe her because it had never been easy.
“It’s you,” Rhys once said, wiping Ike’s feverish forehead, and Soren didn’t believe him, for when he looked at the sapphire of Ike’s dazed gaze, he nearly asphyxiated himself on a fenella of the same colour.
When he became too weak to hold a sword, Soren loved him, and when he stopped eating, Soren loved him, and when he didn’t get out of bed one beautiful morning, Soren still loved him.
“It’s you, it’s you, it’s you,” they all said, and Soren wanted to believe them, but was too afraid to after a lifetime of faithlessness. Instead, he grieved, growing a garden of larkspur towers to cover Ike’s eventual deathbed.
And one day, Ike opened his eyes, finally seeing the poisonous flowers encroaching upon him, recognizing the blue of their dangerous petals as they escaped past Soren’s bloody teeth. In the middle of it all, with the last of his strength, he pulled Soren close, cutting off the stems with his lips.
“It’s you,” he murmured desperately, finally understanding, and when Soren plucked the poppy that delicately bloomed against his own lips, he believed.
It was the last poppy that Soren ever saw.