Unopened item. Shipping is planned via regular mail (teikeigai). I will ship from a small, familiar post office and keep the receipt, but I cannot provide any support other than requesting an investigation in case of non-arrival. If you are concerned, I can ship via Mercari delivery for an additional fee. I don't know when it will sell, so the shipping period is set to the maximum, but I may be able to ship immediately if you are in a hurry, so please comment. 250328553