OOOooh this one was on my to-read list! That’s awesome!!
Yes, this universe is based off “The Sentinel” TV show, but it was expanded on by fandom in America. And then it was discovered by Chinese writers, but it’s not as popular as ABO. The genre is written as (哨兵向导).
The basics are:
- Sentinels are beings with superhuman abilities, but they are mentally and spiritually unstable.
- Guides are beings with empathetic abilities, and they can stabilize Sentinels. Usually some Guides are more powerful than others, and depending on the author there can be different classifications of Guides.
- Both Guides and Sentinels have a spirit animal that only they can see and ordinary humans can’t. Sometimes these spirits can only be seen by fated pairs, sometimes by everyone, and sometimes they can only be seen in the spiritual plane (it depends on the author).
- Guides and Sentinels can go into heat/estrus like ABOs can, and they can bond with each other.
There’s a lot of explanations written for it, just google it. The one on baidu MTLs pretty well. Unfortunately I can’t post the link because I’m a new user.