
Koydo · Storybooks
Original Koydo stories for kids 3–9. A whole cast of friends children come back to night after night — and a growing library of printed books, plush, and tiny adventures you can hold.






Koyo · Mira · Numi · Orbit · Beat · Pip
Open showcase · 14 free stories
No signup, no paywall, no ads. Tap below to open the showcase reader and pick a story to start.
The whole Koydo universe
Every Koydo story lives in one of six painted worlds, all connected by the Hollowmere's long winding paths. Tap any badge to open that world's map and meet its stories.
Hollowmere is free to browse. The full library opens with a Koydo subscription.
For the grown-ups
No ads. No autoplay rabbit holes. No surprise characters appearing mid-scene. Just original stories, written by humans, drawn by a team that cares about how kids fall asleep.

The same friends, every night
A consistent original Koydo cast your child grows up with — not a churn of one-off mascots.

Quieter at bedtime
Moonlit narrators slow down. Soft voices, settled endings. Made for actually falling asleep.

Read together or alone
Tap to listen, or read at your own pace. The transcript stays visible so your child can follow along.




Coming soon
Hardcover storybooks for the shelf. Plush friends for the bed. A tiny shop of keepsakes from the Hollowmere. All on the way.
Personalized hardcovers on glossy paper — with your child as a guest in the Hollowmere.
Koyo, Pip, and the rest — small enough for an arm, tough enough for the wash.
Pick a shelf and start. The cast is waiting.
Six painted worlds. Tap any name to open its map.
Apps land the day we open. Drop your email and we'll write you.
Stickers, posters, lunch notes, and little keepsakes from the world of the Hollowmere.
Drop your email and we'll send a single note when the first printed Koydo storybook is ready to pre-order. No spam, no weekly newsletter — one letter, one launch.