It's subtle, but if you look very closely, squint, and tilt your head in just the right lighting, you can barely make out a hint of distaste for Chinese people.
What irks me possibly more than "Vou(lol)/The Asian" as a concept, is that there's a lot of telling, but no showing. Take the main premise, for instance. We're told the MC is in love with and trying to seduce his mother, he mentions it all the god damn time, but all of his actions and thoughts are really sleazy, manipulative, and abusive. And even overlooking that, they almost never spend time together, so the actual main plot is endlessly stalled so you can swat away another of the mother's suitors, or deal with pointless side characters and all their problems within an extremely compact window of time. The train was derailed the instant the resort was brought into the picture.
Exhibit B, making a character more liberated. Only seems to really matter once, and then you never interact with the mom or sister again while they're under the effects of these options. Same deal with being able to kiss the mom without being called a pervert, never comes up because you're never alone with her, and contrary to the text, you're treated exclusively as a pervert for the two times it happens.