Isamu Gakiya aka Guinea Mate is a Japanese illustrator and draughtsman known for dense, surreal pencil and pen drawings that sit between portrait, creature design, and psychological vignette.
His works often merge human faces with masks, animals, and mechanical or organic growths, balancing beauty and discomfort in scenes that feel like stills from an ongoing inner narrative or dream. He regularly shows yearly drawing series such as “CHILLDIE,” publishes drawing collections (including a book focused on his guinea pig Simon), and is featured by illustration and fantasy‑art platforms for his intricate, emotionally loaded line work.
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