Annetta no Sanpomichi

Maeve, a little Irish fairy, decides to go to the capital, Dublin, to meet her pen pal Annetta, a human girl. The journey she takes with her reliable childhood friend, Molly, and the shoemaker fairy leprechaun, Dink, is packed with excitement.

(Source: Houbunsha, translated)

Note: Includes 3 extra chapters.