Klug is a male member of Primp Town, debuting in Puyo Puyo Fever. He is known to be stuck up and rude. He is commonly perceived as a geek or nerd, or "goody two shoes". He has brown hair and is clad in purple. The book he is always seen carrying is actually from the library, and he continues to keep it through renewal. His birthday is on September 29th. He is called "Glasses" by his friend Sig due to the fact that they are classmates and friends.