Price not negotiable. No payment via convenience store. Purchased around the beginning of this week. Expiration date: June 2028 There may be scratches or marks on the packaging. Please refrain from purchasing if you are sensitive to such imperfections. It is new and unopened. Shipping will be done by placing the product directly into a box and then into a Yu-Packet Post envelope, and will be sent within the shipping deadline. I will ship it as quickly as possible, to the best of my ability.