Ayy! Someone else who's read Brandish! It's been a few years so I'll have to read it again.
The PreReg page says nothing on guilds with the tabs being split into Top, Campaign, Character, Harem Scene, and Game introduction.
All Game Inofrmation says, and I quote:
The ones who talk about it being like Granblue are the ones who've played it on DMM."Ultimate Turn Based RPG Battle! Presenting the gorgeous 『Kamihime Project』! On Both PC &Smart Phone!
Fluid Animation Battle!
Animated Summon Attack!
Hear the characters speak, see them move!
Illustrations of the most superb quality are coming soon!
*Game currently in development*