HOTARU
A message of light,
left in a place
Leave messages and treasure chests at real spots around town. When someone nearby holds up their camera, a glowing box appears — and they can open it.
Place it. Find it. Open it.
Simple to use. The places you go become someone else's discovery.
Leave it right here
Write a message and place it where you stand. Fine-tune the spot on the map, and choose Permanent or One-time.
Find it on the map
See every light nearby on a map or list — what is where, and how much closer you need to get to open it.
Open it in AR
Get close and hold up your camera: the lights appear in the street. Tap to open, and keep what you find in My Boxes.
Four kinds of light
Pick the one that fits the place and the purpose.
Box
The basic box of light, for messages and directions.
Treasure chest
A reward for whoever finds it — the finish line of a hunt.
Premium
Coin
Find coins around town and watch your collection grow.
Bread
A trail marker with no text. Line them up to make a route.
Ways to play
A treasure hunt, with chests
Lay bread along the way and put a chest at the finish. Write the next chest's number inside, and it becomes a chain of puzzles.
An anniversary message
Leave words at a special place, to be opened on the day. Set it to One-time, and the moment it opens happens only once.
A guide to your town
Leave tips at your favorite shops and sights that can only be read on the spot. The more you walk, the more stories the town holds.