![2girls bad_id bad_pixiv_id basket brown_hair creamer_(vessel) cup deed_(nanoha) formal green_eyes hairband kettle long_hair long_sleeves looking_at_viewer lyrical_nanoha mahou_shoujo_lyrical_nanoha_vivid multiple_girls nagashiro_rouge necktie numbers_(nanoha) nun otto_(nanoha) red_eyes shiny shiny_hair short_hair skirt smile teacup towel tray vest rating:s score:2 2girls bad_id bad_pixiv_id basket brown_hair creamer_(vessel) cup deed_(nanoha) formal green_eyes hairband kettle long_hair long_sleeves looking_at_viewer lyrical_nanoha mahou_shoujo_lyrical_nanoha_vivid multiple_girls nagashiro_rouge necktie numbers_(nanoha) nun otto_(nanoha) red_eyes shiny shiny_hair short_hair skirt smile teacup towel tray vest](/cdn_image/preview/2d/a5/2da5d41a8a7d1439bff3a92536f80d06.jpg)
otto (nanoha)
One of the Numbers in Mahou Shoujo Lyrical Nanoha StrikerS. She has a boyish appearance for a female, leading to the rest of the Number Cyborgs unsure of whether Otto is male or female.
This tag implicates numbers_(nanoha) (learn more).