Interesting enough. I like that no one could see her as a girl, and I like that she didn't have to change that or become ultra girly. Pretty cute if not remarkable.
Two classmates happen to be two out of the supposed 3 people in the world that share the same face, they even have the same haircut. They seem to be constantly bickering, having clashing personalities.
Had potential but I think it couldn't develop properly due to time-constraints, I suppose.
It would be really great if manga would be a little bit longer. I see potential in this chapter and it would be possible to make a good story from this.