I was so confused during the fight when the woman with the scar joined the flashback, and then again as an old lady. Now it all makes sense.
Note to self: author is very detailed, I wonder what else has already been revealed secretly
Anything borrowed gets repaid with interest. Sleeping it off seems too low a cost, I’m sure she’s cutting her lifespan and using her as a chess piece is going to become a moral issue for MC.