That's Reimu?

That is one really, really good looking Reimu.

FWP said:

That's Reimu?

Another ORIGINAL CHARACTER DO NOT STEAL probably from Mugen.

Not MUGEN. Some tabletop thing? It might be Reimu's tabletop character she designed.

ゆっくりとロールするTRPG

It's a series of videos with Marisa and Reimu playing a Cthulhu mythos RPG (Alice is the DM), narrated with the usual yukkuri voices. Marisa Carnby and Kureha Reimu are their characters. The tag should probably be changed since "カーンビー" is a pretty clear reference to Edward Carnby in-context?

The two other NPC characters in there are Mami Sealock (CEO of Sealock Real Estate and the client in the case the two are working on) and Aya Shootcrow (reporter at the Boston Globe).

hemlock said:

The two other NPC characters in there are Mami Sealock (CEO of Sealock Real Estate and the client in the case the two are working on) and Aya Shootcrow (reporter at the Boston Globe).

It's "Mami Tworock" actually.

It's "Mami Tworock" actually.

That makes more sense.