RINON’S ADVENTURE 3 was expected to bring us the Challenge charts for the remaining EXTRA EXCLUSIVE songs, but what we didn’t expect to find was a hint of something beyond Cosy Catastrophe… なんかいる pic.twitter.com/ytoEeWP2Nn — ななせさんチーム (@Nanase_naga) July 13, 2017 To find out what it is, you have to climb