The little blue marker had been blinking in the corner of Eren's eye for three days and he'd been ignoring it like a text he didn't want to open.
He'd first caught it the morning after the slime test, a small steady pulse under his level, right next to one skill. He knew which one without opening anything. Door Master had been climbing toward the top of its bracket for weeks, every crossing to Earth and back nudging it up a notch. Now it had finally hit the ceiling and the system wanted a decision out of him.
He'd been putting it off because evolutions were permanent and he'd learned the hard way that fast choices were usually wrong ones. But Mulan's voice was still rattling around in his head from that morning, the part about taking everything north and needing a way home. And a way home was exactly the kind of job a door skill was supposed to do.
