So as I am redesigning the girls and changing them, I wanted to write their sexualities and ethnicity or at least what I headcanon them as if they had their own games.
Shizu Sakamaki: I see them as a non-binary nbwlw, she is mostly attracted to women and non-binary partners who have a feminine appearance. I imagine that her dad is from England and or Shizu has a bunch of grandparents from England/The United Kingdom. So I’d say expect a slight british accent on her end. She has always been somewhat tomboyish but also enjoyed her feminine side, she never lived up to what was expected of her from her father and is open about her sexuality if someone asks.
Reiki Sakamaki: I heavily see her as closeted bisexual who in a way comes out to Yui and or the protagonist, she is stuck in the ideology that being traditionally feminine meant that she had to live up to gender roles and whatnot. Not to mention she knew that if she wanted her father’s attention that her being with a women could bring shame to the whole family. For her, it’s hard for her to really even open up about her feelings towards women, she likes women and knows it but it’s hard for her to have any pride about it. Probably suffers from plenty of compulsory heteronormativity, takes her some time to finally be open about her feelings for women. The only one who truly knows is Shizu and they understand it greatly and somewhat personally. Also I imagine she has roots in England but she rarely has any accent but she enjoys the country.
Ayako Sakamaki: She is a lesbian, a masc one at that and truly loves being with women, she is one of the proudest lesbians in the family that you’ll meet. She has been into women for a long time and often never understood what was so great about men, for her she does suffer a lot of internalized homophobia but she’ll never let it show. Another reason she had as to hate Cornelius was for sending her to conversion therapy and or being adamant about her being interested in men and having an heir in the future. So yeah, though she’s proud of herself, for finally being open about her sexuality but still suffers a lot with internalized homophobia. Cornelius's roots heavily come from Latin culture and shares some Latin in his blood and passed it onto his triplets.
Leiko Sakamaki: I see her as being an open pansexual who dates because she finds someone interesting and someone who can embrace their sexuality as well as sensuality. Though she focuses on appearance or makes people think that it’s all about appearance, she enjoys someone who can interest her to no end and keep her entertained with them. She doesn’t really label it but she’ll date whoever really can keep her interested in them, she doesn’t care what they identify as or what they have in between their legs. She loves Latin and Italian culture so much that she spent a few years learning the language along with French.
Kanako Sakamaki: She is a graysexual bisexual who doesn't heavily focus on sexual attraction and or doesn't feel it as much. I imagine she doesn't care if her sisters or anyone knows about her sexuality. She likes both and doesn't care who knows. She honestly is the kind of person to not care about labels and she likes what she likes.
Sueko Sakamaki: She is a trans queer woman, she knew that this body wasn't something she was comfortable in for some time. Probably since she was a child. Another reason for her mother's anger and hysteria, her hatred, and love for her but she wouldn't change a thing. She has always been soft for women, so soft for them, and one of her first relationships was with Kouka and or there was a friends with benefits relationship they had in which resulted in her catching feelings and getting burned. Though she mistrusts most women, give her time to trust you and give her a reason to do so.