GUMI was born and raised in Japan as a self-taught painter and manga artist. Currently, he is completing his Bachelor of Arts in English Literature at the Meijigakuin University in Tokyo. Growing up in Japan, he was surrounded by manga and anime from a young age, which resulted in his adoration for the subject. He has since then worked relentlessly and self-learned on platforms, such as YouTube and existing mangas, to become an acrylic painter and establish his artistic career.