Known as the demoncat of Wales, Cath Palug has dwelled deep within a thick forest in Wales since long ago, ruling over the monsters in the area with its exceptional intellect and magical powers. Once upon a time, after suffering defeat in a battle against the ancestor of the House of Wales, Cath Palug made a blood pact with them and became a guardian of Wales. Regardless of this oath, the demoncat is highly temperamental and does not enjoy obeying the words of others. As a result, it often withholds important information unless specifically asked and does not always act for the benefit of mortals.