こう言えますよ、
❶ She has a Japanese side to her.(彼女には日本人ぽい一面もある)。
例えば、
She doesn’t look Japanese but she has a Japanese side to her.
(彼女は日本人には見えないけど、日本人ぽい一面もあるんだよ)。
❷She’s really Japanese in many ways. (彼女はいろんな点でめっちゃ日本人だよ)。
例えば、
She doesn’t have black hair but she’s really Japanese in many ways.
(彼女は黒髪じゃないけど、いろんな点でめっちゃ日本人だよ)。
と言えますよ、参考に！
There are some aspects of her character that are very Japanese even though she looks just like a westerner.
この場合、次のような言い方ができますよ。
ーThere are some aspects of her character that are very Japanese even though she looks just like a westerner.
「彼女は完全に欧米人に見えるけど、とても日本人ぽい一面もある」
aspects of one's character で「性格や気質の様相」
ご参考まで！
アメリカ合衆国 
カナダ 
