Bernal Aguilar (born 1981), also known as Tokebi (Korean: 도깨비) is a Guatemalan artist, illustrator, and university professor, best known for the use of skulls, bright neon colors and Kitsch aesthetic in his work.

[1][2] Tokebi rose to popularity when was personally chosen by Grammy winner heavy metal band Mastodon to design their merchandise for the 2019's European Tour.

[3] Tokebi is especially popular among rock bands, rappers and DJs,[4] and is seen as one of the international ambassadors of the Guatemalan lowbrow movement.

[3] Tokebi's artistic career began in 2010 on the streets of Hongdae, Seoul, where he used to sell his pieces on signed prints and t-shirts, gaining recognition in local media for thriving as a foreigner.

Tokebi is currently teaching university courses in Digital Illustration, Graphic and Multimedia Design at the Universidad del Istmo in Guatemala,[3] and his artistic career is now orbiting the non-fungible assets or NFT market.