| Ouka桜花 | |
| Hair | Black, Blunt Bangs, Sidehair, Waist Length+ |
| Eyes | Garnet |
| Body | Medium Breasts, Pale, Slim, Teen |
| Clothes | Choker, Hairpin, Sailor School Uniform, Thigh Band |
| Personality | Honorable, Kind, Quiet, Shy |
| Role | Twin Sister, Yamato Nadeshiko |
| Subject of | Pregnancy |
| Visual novels | Side character - Kowaku no Toki Side character - Hanamaru! 2 |
| Voiced by | Andou Ryuu |
| Tsukishiro Ouka月白 桜花 | |
| Hair | Black, Blunt Bangs, Hime Cut, Sidehair, Straight, Waist Length+ |
| Eyes | Garnet, Tsurime |
| Body | Pale, Slim, Small Breasts, Teen |
| Clothes | Choker, Crop Top, Hairpin, Knee-high Socks, Mary Jane, Miniskirt, Old Type School Swimsuit, Sailor School Uniform, Thigh Band |
| Personality | Honorable, Kind, Shy, Taciturn |
| Role | Full Sister, Yamato Nadeshiko, Younger Sister |
| Visual novels | Side character - In'youchuu Shoku ~Ryoushokutou Taimaroku~ In'youchuu Gaiden > Makes an appearance - r36325:In'youchuu Gaiden ~Mikoto to Takeru Hen Kizashi no Shou~ > Main character - r36327:In'youchuu Gaiden ~Tsukishiro Shimai Hen Hajimari no Shou~ Main character - Shin'yaku In'youchuu - Shiro Neko Honpo Hen & Tsukishiro Shimai Hen |
| Voiced by | Asari Kazuna Sayaka |
| Tsukishiro Ouka月白 桜花 | |
| Hair | Black, Blunt Bangs, Sidehair, Straight, Waist Length+ |
| Eyes | Garnet, Tsurime |
| Body | Pale, Slim, Teen |
| Clothes | Choker, Crop Top, Hairpin, Knee-high Socks, Miko's Dress, Miniskirt, Necktie, Sailor School Uniform, School Uniform, Thigh Band |
| Personality | Honorable, Kind, Shy, Taciturn |
| Role | Daughter, Miko, Twin Sister, Yamato Nadeshiko |
| Visual novels | Main character - In'youchuu Kyou ~Ryoushoku Byoutou Taimaroku~ Main character - In'youchuu Kyou ~Kuon no Hime Miko~ Main character - In'youchuu Goku ~Ryoujoku Jigoku Taimaroku~ Main character - In'youchuu Goku - Kuon no Hime Miko - Tokubetsu Hen Main character - In'youchuu Shuu ~Ryoujoku Rakuen Taimaroku~ |
| Voiced by | Kazuna Sayaka |