Tearmoon Teikoku Monogatari ~Dantoudai kara Hajimaru, Hime no Tensei Gyakuten Story~ - Vol. 6 Ch. 26

[Gotham2298]

Now that you mention it, I do not recall any additional mentions of this band of four in the novels. The event of this chapter happened in vol 2, and English translation right now is at vol 9

Maybe I should reread everything...

Honestly this is the first time I'm hearing this.

Spoiler: Spoiler for novels

Thinking of what I read so far, she has so many vital allies that I can't imagine four sticking out more than the rest.

 

[yoa]

Sasuga Ain- cough MIA-SAMA

 

[welcome2atlantis]

She will have Four Heavenly Kings? That means in the future, the Princess will become Demon King.

 

[pandascepter]

Such a good thing to happen

 

[lowarctic]

Ludwig X Dion BL let’s go

 

[Johnwill11]

Ludwig X Dion BL let’s go

Actually both guys are straight, and Dion later marries Citrina Yellowmoon, daughter of Duke Yellowmoon.