OekakiDungeon sequel appeared! The place where you are is the world of darkness. This world is connected by teleport. Let's adventure this world! The world will gradually become bright by walking. Let's make all the world 100% brighter. When the achievement rate reaches 100%, a secret exit opens. That is the exit of this world. And, Can you find only one treasure in this world? (c)Keiko Asitaka