At North Ryoshima Coast, go to the island with Catcall Tower on it, then enter the island's inside grounds through the entrance in the thick circle of trees lining the island's perimeter. Once inside, Amaterasu will encounter a new type of demon, the Poltergeist. After killing it, Issun will notice trails of golden pawprints on Catcall Tower. Ignore these pawprints as of now, and go to explore the island's surrounding ground. Dig up and bloom the clovers near the small towers and if Amaterasu has enough Fish Feedbags, feed the cats nearby. After these are done, approach Catcall Tower and jump onto it, pressing jump again as Amaterasu makes contact with the pawprint-covered surface. Jump off the surface to get higher, then stick back onto it. Keep scaling like this up the tower. On the way up, there would be red rings on the tower that generates a golden cloud when crossed. This cloud is solid an can be walked on, which serves as a "safety checkpoint". Each of these clouds mark a floor, with a small platform on the cloud that has either cats, a treasure chest, or both. Note that the eight floor has no protective cloud, but its platform has Stray Bead #67, so remember to constantly circle around the tower as Amaterasu scales her way up, and hopefully catch the eighth floor in sight.