>>530113807
Anon, she has:
>Thin waist and thin arms
>Large hips and giant legs
>Angular, feminine-looking faceplate
>A large breastplate that's clearly meant to resemble breasts
>Her leg armor is clearly modeled to look like high-heeled thigh highs
>Takes a feminine, crossed-leg stance in the hanger

The only way they could make it more clear than Narukami is feminine is if they went the Mazinger route and just straight up gave her robonipples and a visible mechagina.