Rule 34 Dev - 1980s_theme bikini blue_hair breasts clothing cloud day female hair horn long_hair looking_at_viewer not_furry oldschool outside retro_artstyle sea sitting solo swimwear two-piece_swimsuit water takahashi_rumiko asian_mythology east_asian_mythology japanese_mythology mythology urusei_yatsura lum_(urusei_yatsura) alien demon humanoid oni yokai 1984 halftone official_art|23165535330