A Wisdom Fairy (知恵の妖精 Chie no yōsei) is a magical creature similar to a gremlin and like the latter, possess considerable understanding in machinery. However, they only break down and sabotage machinery and gadgets should those who ask their guidance don't give them offering as a form of gratitude.
Description[]
The Wisdom Fairies are small, semi-humanoid creatures with dark-colored eyes without pupils, a pair of protruding ears/horns that give them vague impression of imp, and a wrench like tail.
These creatures move in groups and always help repair the machines of those who need it. However, if they are not given a contribution, something like food or candy, the Wisdom Fairies get upset and break down all the machines they could find as stated previously.
Like gremlins, the Wisdom Fairies hide in people's homes, they are so fast they can't be seen and can break down any machinery causing it to fall apart in an instant.
Powers and Abilities[]
In the same vein with gremlins they compared to, these fairies can quickly understand how machinery works, including means to dismantle or sabotage them. Unlike the former, however, wisdom fairies are also capable of repairing and improving machinery, thus making them ideal familiar and summon for witches and wizards who excel in mechanics such as Constanze.
Though this aspect is not fully explored, Wisdom Fairies are highly knowledgeable and capable of giving the best of advices true to their namesake. Ones that encountered and befriended Constanze are contributed not just in some of her projects, but also the construction of her very personal underground workshop that apparently built in secret somewhere between River Thames and Luna Nova.