This is a visual novel about 60 minutes in length, telling a story of memories.The visual novel "Once10" is a story which will recall the experience of many individuals. Regardless of if you're in your springtime of life having full of dreams for the future, or if you're a matured adult who has already stepped into the society and owns a family, you will all somehow spot traces of yourself in "Once10". Because that‘one time' not only exists in the game, but it also belongs to each one of us. It's a heartwarming story with moments of joy and regret.