PuyoPuyo series character, first appeared as the final boss of PuyoPuyo Fever 2.
The result of Klug being possessed by the demon that is sealed within his book. His birthday is the same as Sig's (June 6). Sometimes the original Klug can be seen as a purple ghost-like creature stemming from the book.
The following tags are aliased to this tag: ayashii_klug and possessed_klug (learn more).
This tag implicates klug_(puyopuyo) (learn more).