It's also easy for chinese names when you know the very limited number of possible surnames. But then you must assume the citator knows some chinese, which they don't.
Japanese is a bit harder as their firstnames are written in myriads of western styles. (e.g. Miu, Miyu, Miyuu, Miju, ... a common female firstname, for "Beauty, Gentleness & Superiority". Mi=Beautiful, Yu=Gentleness, Superiority). Also Miyu can be written in myriads of ways in japanese, with only some being the common female firstname, where yu can also mean Bind, Friend, Eternal, Dream, To exist, Yuzu (a lemon), Sorrow, ...
You need to persist on consistent ordering, even if westerners have no idea and continue ignoring it. Even if everybody writes Itō Mima as Mima Ito, she is still Itō Mima.
The prominent Wang Manyu and other chinese table tennis players did establish their correct writing, they just call her Wang Manyu instead of Wang Manyü ("man-yue"), which is equally embarrasing.
You insist on correct gendering, but still write the names wrong.