Derived from Roki's Hata no Kokoro.

Sacriven said:

Derived from Roki's Hata no Kokoro.

While that is true, I don't think this post and post #2381782 should have a parent-child relationship.

There are a couple of pictures with this outfit/theme now.
To name a few:
post #2132697
post #2277155
kureha_mitsushige
dsk
https://twitter.com/furui_1111 made a 3D model of it.