rushka
The artist formerly tagged here was split into two artist tags. Not sure they're the same person: Watari (hasumi rina) and Lyu (rina0129)
For other artists named rushka: "rushka_*":/artists?utf8=%E2%9C%93&search[name]=rushka_*&search[sort]=Date&commit=Search | "*_rushka":/artists?utf8=%E2%9C%93&search[name]=*_rushka&search[sort]=Date&commit=Search search
For some characters named rushka: "rushka_*":/tags?utf8=%E2%9C%93&search[name_matches]=rushka_*&search[category]=4&search[hide_empty]=yes&search[sort]=date&commit=Search | "*_rushka":/tags?utf8=%E2%9C%93&search[name_matches]=*_rushka&search[category]=4&search[hide_empty]=yes&search[sort]=date&commit=Search