I really enjoy this story so far. I like the characters especially the main? ones (Ying&Pat). The Art looks like a quick style but pretty well done. Hopefully that means regular updates..
Some people are concerned about the long buildup but I prefer this over short stories I'll forget about 10 minutes after I read them.
Damn, I really enjoy this approach of storytelling and art so far, I even made my first comment. That being said, I had to reread the chapter before this one to know who is who. 4 blackhaired girls with ponytail is a little bit much at once.