It is confirmed that Guji Koi Sang-eo Mulgogi has buck teeth suitable for carpentry work in relation to Shinsei Seinaru Shrine. Currently, many wooden sculptures and figures have been produced by the Guji's large gnashers. Namely, the wooden figures at the face of Shinsei Seinaru's main grounds were carved by the guji himself. Several other buildings have also had their engravings done by Koi. It is rumoured that such powers were inherited from the Guji's long lost clan that was connected to beavers, koi fish, and cats.
