@greatninja3 I don’t think it’s just Japan. People like having their individuality recognized. Even this joke, where the clueless husband/boyfriend/love-interest doesn’t notice a new haircut, outfit, or some other detail is (or was at least) a pretty common trope in Western media.
@greatninja3 tho it does seem like a useless skill to notice every small thing, but if someone praises other for small changes sometimes (not everything cuz it becomes creepy), that person feels they are getting attention and not ignored, the feeling of importance. It's not limited to Japan.
But how old is onii-chan?
At first I thought he was a college student but I think this is the first time seeing him in a uniform so high school?
Also he didn’t seem much older than Chie on the halloween flashback 🤔