May Greenfield (Best girl btw) from Armored Core: 4 Answer. If you've never played the game, she's an NPC you can hire whilst you perform missions in your own mech (A NEXT/Armored Core or AC for short)

Your role is unspecified, but you're meeting up with her after a successful mission at her garage for drinks. (You weren't there for it, you'remeeting for a different reason) You could be the protagonist or just a technician for her own mech, 'Merrygate', whatever you can make work.

Art by: JMINAMI2