The Radiant Historia: Perfect Chronology sword dancing skill is one that you will need to teach Stocke in order to proceed through the main story of the Standard History timeline. Though this significant remaster of the game adds a ton of new content, this timeline puzzle is completely unchanged. In fact, it can be one of the first really tough puzzles to solve.
Thankfully, we've taken the time to figure out the answer to teaching Stocke the Radiant Historia Perfect Chronology sword dancing skill. It is somewhat confusing, but we've got everything you need to know to do the same. The sword dance skill will allow Stocke to infiltrate Granorg successfully with his crew.
Radiant Historia Perfect Chronology Sword Dance: How to Teach Stocke Sword Dancing
During the Standard History timeline, you and your crew will attempt to infiltrate Granorg as a part of a secret mission. In order to sneak into the city, you must pretend to be in a troupe of performers. You must teach Stocke the Radiant Historia Perfect Chronology sword dancing skill so you can successfully trick the soldiers and proceed.
You can teach Stocke the Radiant Historia Perfect Chronology sword dance skill by jumping to the Alternate History timeline. There is a specific node located there that you must get to in order to learn the sword dancing skill from a certain soldier of Alistel.
That node is the Valkyrie node. If you haven't unlocked it yet, continue the Alternate History timeline until you reach the Sand Fortress to meet with the Valkyrie. Once you've made it to the Valkyrie node, find Kiel inside the Sand Fortress and speak with him to activate the event that teaches Stocke the Radiant Historia Perfect Chronology sword dancing skill. From there, you can teleport back to the Standard History and get into the city.