honestly the color doesn't look that appealing tho if it's like italian soda i think it's subtle in the sugar/syrup. tho given the portion, ice cream scoop aside i think it's usually a bit smaller. tho wouldn't be surprised if they ordered multiple drinks to stay as long as possible XD
Miku doesn't know game. If she ordered a different drink, she could snag an indirect kiss with Sou under the pretense of trying each other's drinks. I'm sure Karina and Hinata will do so.
He is the 'chosen one' prolly also a combo of his isekai logic acting 'normal/nice' to girls as opposed to the other guys usually being repulsed and not rly 'manly' in front of the
She doesn't need to do anything because Miku is R18 Sou's first girl outside of his family... he can't resist those humungous hungolomghnonoloughongous
I still believe that the girls in this world evolved to be extremely thirsty. I probably made a comment about that before and the worldbuilding implications of that, but I dunno how to search for it 😅