Pen So is an illustrator and comics artist. In 2013, he attended the Comics Master Class presented by Hong Kong Arts Centre (Comix Home Base) and started his creation in comics since then.

In 2022, he published a comic book See You In Memories, winning the Silver Award at the 16th Japan International MANGA Award and the Bologna Ragazzi Awards 2024 in the New Horizons Category. It was also selected for the Singapore Book Illustrators Gallery (BIG) 2024. His works were once exhibited in Belgium, Germany, Japan,Korea, France, and Italy.