Minish
From Lozwiki
The Minish (known to the Hylians as the Picori) first appeared in The Legend of Zelda: The Minish Cap. They are a tiny race the size of a thumb and can only be seen by good, well-behaved children. According to legend, they came from another world; this world can be reached when a door within Hyrule Castle courtyard opens once every century (although, in reality, you can reach them by using one of the many minish portals hidden around Hyrule). It is said that when monsters threatened mankind, the Minish gave a legendary sword and a golden light to a courageous man, now known as the Hero of Men, destined to ward off the monsters. Also, it is known that the Minish placed objects under rocks and weeds to "please people", which explains how the objects such as Rupees and items appeared under said objects in the previous games.