You soon discover that Ria was the person under the waterfall, while her clothes were on the edge of the pond while she was cleaning herself during the shower. You hide yourself behind the tree, where you starting seeing her, and your face turned red after seeing her naked just from showering by herself in the woods.
Just then, you hear Ria get out, while placing the clothes she had taken off back on, and then you feel a familiar hand touch your right shoulder, while you turn to find Ria standing behind you. "Surprising to see you here, sis," she says. "I just got here before you, so it's no surprise. I was born first, so I came here first." You shrug, knowing that your twin sister had to get her way. "So, where do you think we are?" Ria asks. "You're in the Myth Forest," a voice answers before you could.