Responses
uuhhh they did- several chapters back. But the moment the serum was exposed to the air it would evaporate. Hanji said that the current technology within the wall was too lacking for them to properly analyse and recreate said serum.
Who will it be Armin or Erwin......I personally want Erwin .....but I have a feeling it might be Armin.......My question is they had the serum for so long and they never tried to recreate it. Why?