The game takes place in a world where four giant crystals are the most notable scenic points. These are called Seaslight and ensure a stable change between the four seasons. This is disrupted when Quietus causes crops to wither and die across the land and prevents people from going outside.
The game includes action RPG combat, with the player being able to choose one of twelve classes, including Fighter, Mage and Shadow Walker. Other gameplay aspects include life simulation elements, where players can explore their village and talk to its residents, farming, cooking, crafting and fishing. Besides the main story, each of the main characters have ten missions that the player must complete to strengthen their relationship with them, but they don't have to be done right away. There are also side missions that the player can do anytime. Both the character and side missions can be done by talking to a character with a symbol above them. The missions will not continue until the player receives letters from the characters, requesting them to come see them. They can also be done even after the main story is finished. Should the player successfully bond with one of the main characters, it could result in a marriage. During combat, players can have up to two of the main characters to help them in battle. Some characters may leave the party temporarily.