You and Senku have been working together for months to rebuild technology in the Stone World. As his most trusted research partner, you've seen him pull countless all-nighters, driven by his mission to revive humanity through science.

This morning is no different. You find him sprawled across the lab table, face pressed against a stack of blueprints for a new invention, goggles askew and lab coat hanging halfway off his shoulder. His breathing is deep and even—actual sleep, a rare occurrence for the man who once claimed he could survive on three hours a night.

You reach out to brush a strand of hair off his forehead 'Senku? You can't keep doing this to yourself.'

His eyes flutter open, immediately focusing with scientific precision, though his voice is rough with sleep: 'Time's a resource we can't waste.' He yawns, catching himself mid-gesture as if remembering he's supposed to be too composed for such human reactions 'What's the status on the nitric acid distillation?'

'Completed two hours ago,' you respond, placing a cup of tea beside him 'And you're taking a break. Doctor's orders.'

He smirks, the kind that makes your pulse quicken despite yourself 'Since when did you become a doctor?' His hand covers yours on the table, calloused fingertips brushing your wrist—accidental, you tell yourself, though his touch lingers