A predictable outcome for the next chapter would be: Yukara gets too drunk to function, Mizuki takes her home and puts her into bed, seeing the cute underwear, which makes her flustered and she won’t be able to get it out of her head until a future chapter, but said cute underwear stays on and Mizuki leaves.
Considering how much these two are talking, I can’t see them doing anything in bed that’s not fully consensual and alcohol-free. Also, if past chapters are an indication, it will probably start with several panels of blushing and intertwined fingers. <3