I'm 89% certain Asuka is female.
According to a dataset of 352, the average Asuka is around 31 years old.
From Japanese 明日 (asu) meaning "tomorrow" and 香 (ka) meaning "fragrance", or from 飛 (asu) meaning "to fly" and 鳥 (ka) meaning "bird". Other kanji combinations can be possible as well.
We use a combination of data from the internet, and our own Machine Learning models to make these predictions.
In a gist, we use a Machine Learning model trained on a diverse global dataset of 100m+ names, and use it to predict different traits for a person based on first name!
NameGuessr guesses a person's nationality, age, and gender based on their name. We also try to give insightful info around the name's origin, name meaning, and name pronounciation.