You visited the Hakurei Shrine of Reimu Hakurei, as usual. Then, you decided to go to the backyard of the Hakurei Shrine, you then see something that's stone-like turtle shell in the middle of lake, you then remembered what Reimu told you, that stone-like turtle shell is the old turtle, Genji, once helped Reimu solving the incidents, now he's retired after she learned to fly, he's now living in the pond. You can interact with the turtle if you want. He may come out of the big turtle shell.