#hsin

"Moon-Chasing" comes from a tale about "The Fox"/Hsin, one of Huanglong's Sentinels known for mischeif, merriment, and whimsical gifts. As per the tale, Hsin teased and chased after another Sentinel during a night of celebration.

Remember all Sentinels of Huanglong used to be together as one.

-Jué 角/Jiăo means \*horn\* and comes from "Horned Wood Dragon" 角木蛟.

-Hsin 心/Xīn means \*heart\* and comes from "Moon Fox of the Heart" 心月狐.

In the beginning of the story, Yangyang tells you "There is one capital and six cities in Huanglong, with each city having its own Sentinel. While they share some similarities in appearance, there are also differences. Records state the Sentinels in Huanglong were once a single entity. Now they are each responsible for a part of Huanglong."

I think the main sentinel for Huanglong (like what all the sentinels were when together) would be Azure Dragon of the East/Qīnglóng. It looks like Kuro is basing them on the Twenty-Eight Mansions 二十八宿, and the Mansions are divided into four groups/four symbols:

Azure Dragon (East), Black Tortoise (North), White Tiger (West), Vermilion Bird (South).

So Jué Jiăo and Hsin Xīn correspond with Azure Dragon Qinglong of the East/Eastern Seven Mansions. But then there would be 5 more, and I remember Huanglong actually has 6 cities not 7? Or rather Yangyang said "1 capital, 6 cities" so I will also assume the capital count as its own city... I suffer. Let's go with the 7 anyways just for this.

*Edit: it does as per Changli's profile "she returned to Jinzhou from Mingting, the capital city of Huanglong."

And I like how those tied to Jué have traits for this.

For example, Jiyan, appointed by Jué, can manifest the Azure Dragon Qinglong through his lance. His Resonance Examination Report: Resonator Jiyan possesses the ability to manipulate wind energy, which he can channel into a "Qingloong/Teal Dragon" that aids him in battle. 

Geshu Lin, former general, has a claw on his neck which I want to say belongs to Qinglong. Or maybe it's a horn, I don't know.

And Jinhsi is Jinhsi, she resonates with Jué the dragon of Spring Thunder.

The other Eastern Seven Mansions

亢金龙 - Kang 'Neck'

氐土貉 - Di 'Root'

房日兔 - Fang 'Room'

尾火虎 - Wei 'Tail'

箕水豹 - Ji 'Winnowing Basket'

Yangyang said MOST Sentinels in Huanglong take the form of a Loong, but you have here 房日兔 Fang Rabbit, 尾火虎 Wei Tiger, 箕水豹 Ji Leopard

So what I think they will end up doing is (not in this order):

Jinzhou - Jué Jiao Horn

CITY 2 - Heart

CITY 3 - Neck

CITY 4 - Root

CITY 5 - Room

CITY 6 - Tail

CITY 7 - Winnowing Basket

All together: Qinglong Azure Dragon of the East representing Huanglong

*Edit: I forgot in Yinlin's moments side quest, there's a dialogue option that leads to "Fox chasing Rabbit", Rabbit Sentinel would be the Fang/"Room" Mansion -> 房日兔

Another stall tells you about The Tail