|You'll begin alongside Kyokuho of the Wind and Water and Leveva Heavensreader. Three Fleeting Spirits will be fighting Udoku and a pair of consorts, while an Angry Spirit further on will be attacking a pair of hingans. You MUST defeat all four of these adds before they can defeat their victims, it can be helpful to use Aspected Benefic on them to help keep them up alongside attacking the monsters directly. The hardest part is keeping an eye on both groups, you likely won't have enough time to just deal with the fleeting spirits before the angry spirit.
Once the citizens are safe, cross the bridge to the Kogane Dori where Kinko Kugane will make an appearance and attack, focusing on Kyokuho. Beware of her Foxfang move which will do damage and Poison, and once she hits 75% HP she will teleport away to the Tasogare Bridge near the airship dock. Three Fleeting Spirits will hassle you along the way, deal with them as you see fit. Just before the bridge you'll face a Fury of the Golden Fox, which resembles the first boss of Sirensong Sea. It hits fairly hard, especially its targeted circle AoE Concussive Oscillation. Dodge as best you can and top off your allies who can't foresee the attacks. Only once it's defeated will Kinko Kugane appear once more.
During the fight, various adds will spawn. The first are a pair of Wrath balls that must be healed to defeat them. They'll occasionally use Burning Hate on you if left alive for moderate damage (Possibly worse effects if left for long). Next will be a pair of Anguish balls and three Evil Spirit adds. The Anguishes must be healed and the spirits defeated, the spirits being normal Bhoot monsters. If left alive, the Anguish will use Thorough Cursing, a line AoE that can be dodged.
Once reduced to 0% HP, Kinko will stop attacking and one last wave of adds will spawn, three Evil Spirits and two Wraths. Just focus on healing the Wraths, once topped off there will be a bright light and the spirits will vanish. An Unrest will spawn on Kinko, and you must use NOCTURNAL aspected benefic to proceed. Do so and the fight will end.