|Hirono Nagi広野 凪|
|Measurements||Height: 164cm, Weight: 46kg, Bust-Waist-Hips: 85-57-86cm|
|Hair||, Ahoge, Brown, Parted to Side, Short, Sidehair|
|Eyes||, Brown, Tsurime|
|Body||, Average Height, Pale, Slim, Teen|
|Clothes||, Detached Sleeves, Dress, Glasses, Ribbon Tie, School Uniform, Thigh-high Stockings|
|Personality||, Boku, Brocon, Hardworker, Serious, Smart, Stoic, Taciturn|
|Role||, Classmate, Daughter, Friend, Full Sister, High School Student, Honor Student, Lonely, Older Sister, Painter|
|Engages in||, Drawing, Teasing|
|Subject of||, Teasing|
|Engages in (Sexual)|
|Subject of (Sexual)|
|Visual novels||Main character - Tenshi no Nichiyoubi "ef - a fairy tale of the two." Pleasurable Box|
ef - a fairy tale of the two.
> Side character - r3111:ef - a fairy tale of the two. (ef Lite)
> Side character - r6049:ef - a fairy tale of the two. - First Press Limited Edition
> Side character - r6048:ef - a fairy tale of the two. - Regular Edition
> Makes an appearance - r389:ef - the first tale.
> Side character - r599:ef - the latter tale.
|Voiced by||Misaki Rina|
She is the older sister of Hirono Hiro and has a talent for painting. Her brother uses her name for his work as a mangaka. She likes to paint herself nude, but lost her ability to draw because she felt alone for some time. She regains her ability to draw later and she is some kind of art teacher for Himuro Yuu, who she loved back at high school. She was engaged with Kuze for a short time and is a friend of Mizuki later. Her character is energetic but also very kind. She has short brown hair, brown eyes and wears glasses in the present time of the second ef story.