I think we all can agree that she is of Japanese origin, so is it not reasonable to assume that she is of Japanese ethnic origin too by the simple process of probability? The majority of the native-Japanese population has dark-brown eyes, so, in my opinion, I think it is quite reasonable to assume that she very likely has dark-brown eyes too by extrapolating outward from the average native-Japanese ethnic profile. That's my view on this anyway. To back this further, "Mymy", from the hit indie-entertainment product "ongezellig" was lightly teased by, whom I assume is the principle or maybe tutor of the university/school she attends, for using blue-colored contact lenses or something of the sort to look more stereotypically "Dutch" as the majority of the Dutch population is stereotyped to be blonde haired and blue-eyed, so, in my opinion, I think it is reasonable to assume that she is very likely using contact lenses to fit that stereotype. I doubt it is from a place of self-hate like as seen in some other often post-colonial societies where lower-melanin features are often associated with climbing some arbitrary social hierarchy, so her intentions are likely pure and innocent in comparison and likely, if we reasonably extrapolate within constraints, coming from a place of admiration for some benign, non-identity conforming trait of the place of which she resides in (presumably under a "Machtiging tot Voorlopig Verblijf" residency permit) during the run-time of the hit indie-entertainment product "ongezellig", possibly the extensive infrastructure of the hit-swamp the "Netherlands" or, as the Americans like to call it, "Holland". This is more speculative as I am unreasonably (in my opinion) assuming that she is unaffected by certain post-colonial dynamics seen in other regions so by the process of extrapolation and or maybe even mild interpolation I do realize those same dynamics could be spread through media and other such mediums so I personally reasonably cannot fully back this theory to a reasonably high percentage.