The full set from Letters from Unknown Stars called Candy Park. I bought it last year but it fits badly on me so I've decided to part from it. There is a stain from the blouse that it had when I received it as I have only tried it on.
Jsk size is 91 in length, 91-101 in bust and 74-84 in waist
The blouse has removable sleeves the size is 55 in length, 98 in bust, the sleeve length is 23.5 and the cuffs are 29. The detachable sleeve is 41 cm. There is two removable bows one headbow and headdress, two clip and a colourful brooch. It says on the website that it's made of cotton.