If you're okay with shipping via Mercari without bubble wrap, the shipping cost is included. Since shipping costs 520 yen, I cannot offer a discount. This is already a significant loss for me. Please refrain from purchasing if you are concerned about minor damage to the outer packaging from the time of sale, to avoid any potential issues. If you buy two for yourself, or if you and your family/friends are buying in bulk, I will offer a 100 yen discount.