Super Doll★Licca-chan

Licca is in grave danger once she finds out that she is the princess of the Doll Kingdom. Now, the evil Dr. Scarecrow is after her and her throne. So Licca's grandmother gives her a set of dolls. When needed, the dolls will transform into larger versions known as the Doll Knights. Together, they will protect Licca.

(Source: AnimeNfo)