As far as I can tell, no, you don't need to read the other stories. This one is mostly a stand alone story.
Yes and no ? Like some things you might understand better if you read the other Manga but honestly not necessary
Whats the other story called?
not at allll i didnt care for the other stories either
As long as you read Kiss me if you can, it should make more sense
do I have to read the other stories to understand this one? I dropped the other ones cause the characters were ass