What purpose does the SD card slot serve on Miko 2?

miko slotWelcome to the Miko Festival slot review, where we aim to take you on a tour of East Asia with this colourful festival-themed game from One Touch. Offering a mammoth jackpot of 70,200x,Yae Miko is a 5-star Electro Catalyst character in Genshin Impact, who is best built as an off-field Electro