When my father’s grandchildren moved from Brazil to Korea, he lost his daily routine and fell into a depression. To help him feel better, I suggested he should draw for his grandchildren and share it on Instagram.

I told the story behind this family project in a Facebook video, and it went viral (5 million views), garnering over 400K followers and international media coverage from the BBC to NBC. Now 84, he has traded a quiet retirement for a bustling career as the world’s favorite digital grandpa.

Drawings for My Grandchildren Instagram page