The costume itself is great and fits as expected, comes with extra buttons but I received the Heartslabyul design for some reason? I'm sure this is a manufacturer mistake. The accessory on the hat was also sewn on upside down. Costume and hat does not have any stretch/adjustment. Some of the holes for the buttons don't open up for the button to go through.
Edit) After contacting dokidoki, they resent me the correct costume (hat and top)! :)