Kimetsu no Yaiba Volume 20 Special Edition Commemorative Postcards - Memories - (Set of 16 postcards) - Brand new, unopened. I have stored this in a dark place after purchase. There are no noticeable signs of yellowing, but please understand that some time has passed since the purchase. I will package it with bubble wrap and an OPP bag to protect it from water damage. ☆ No price reduction.