In Koe (声) you are sent to Japan as a high school exchange student. Make friends, learn the language and spend time with your homestay family during your time in the rural city of Sakurachou.
Eventually you'll realize this small Japanese city is harbouring a certain perculiarity in its shrine, you'll be transformed and sent on your way to Koe- a world full of cities, caves, shrine, battles along with new friends where your words will be your most powerful weapon.

Using your army of Japanese words you'll be able to attack, defend, heal and grind your way through the vast overworld, while returning to Sakuracho to learn the words you need to strengthen your arsenal. With your friends, will you be able to uncover the mystery of the princess Fleur and her family?