BUR #29101 has been rejected.
nuke sinsekai_studio
rename valis_(sinsekai) -> virtual_circus_valis
rename chino_(valis) -> chino_(virtual_circus_valis)
rename myu_(valis) -> myu_(virtual_circus_valis)
rename neffy_(valis) -> neffy_(virtual_circus_valis)
rename nina_(valis) -> nina_(virtual_circus_valis)
rename rara_(valis) -> rara_(virtual_circus_valis)
rename vitte_(valis) -> vitte_(virtual_circus_valis)
rename asu_(sinsekai) -> asu_(kamitsubaki_studio)
rename aru_(sinsekai) -> aru_(kamitsubaki_studio)
rename sooda_(sinsekai) -> sooda_(kamitsubaki_studio)
rename tobia_(sinsekai) -> tobia_(kamitsubaki_studio)
rename ema_(singer) -> ema_(dustcell)
Kamitsubaki Studio has Sinsekai Studio tag as a subdivision, which is officially stated and pointed out in the wiki page with a few more subdivisions.
The point of this BUR is nuke this subdivision tag, leave the group tags, and rename most of the character tags to fit the changes. Sinsekai Studio tag is redundant, and it's more practical to work with character group tags instead.
Updated