Someone left a letter somewhere in your city. Envelope icons float on the map. Walk within 10 meters to read one. Once read, the letter disappears — and you earn the right to leave one of your own. Anonymous letters. Words from strangers. Tiny secrets hidden in your neighborhood. --- How to Play --- 1. Find letters on the map 2. Walk within 10m to unlock 3. Open and read (letter disappears) 4. Earn writing credits by reading 5. Leave a letter at your current spot One free letter per day. Read more to write more. 47 seed letters are placed across Japan. Find the one in your city.
