Artist.
Japanese name: ζ‘ζ¨ ζζ (Sakuragi Rian)
The other names: ζε ι (Asakura Gin) or "Mashi" (reading is γΎγ£γγΌ, Masshii)
Circle & Site name: Cynthia (γγ₯γ³γγ£γ’)
The artist uses the spelling Sakuragi Rean because the name came from a personification of the DeLorean DMC-12, pronounced "Derorian" in Japanese (pixiv #33322719).
Renowned as the author of this detailed research note about Satsuki Rin: [Evernote Link].