little mermaid and leviathan (goddess of victory: nikke) drawn by oe_nui

2girls alternate_costume black_hair black_kimono blue_hair blush bonnet chibi chibi_inset closed_eyes closed_mouth colored_inner_hair fang frilled_sleeves frills goddess_of_victory:nikke green_eyes grey_hair hair_ornament hairband happy_new_year highres horns japanese_clothes kimono leviathan(nikke) little_mermaid_(nikke) long_hair long_sleeves looking_at_viewer multicolored_hair multiple_girls oe_nui open_mouth pointy_ears ribbon sash simple_background slit_pupils smile solo_focus speech_bubble very_long_hair white_background wide_sleeves