This is set in China and the two fls have Chinese names ^^
Ssssh this is a Japanese comic for me
Cheese seems like a weird topping for a sweet drink (speaking as a former "who the hell puts cheese in their milk tea" person), but it's actually quite good. Here's a menu from a chain that popularized salted cheese foam on milk tea in the USA and a few other countries: https://happylemonwest.com/wp-content/uploads/2021/01/Untitled-design-1-1024x580.png