I don't like this. It's annoying for all these people of the same gender who are children to be in a love triangle. Why can't they all be friends? Why do none of them feel any responsibility to help someone in need; or, why is it so hard for them to just not help someone who doesn't seem to want help? Bad things happen but it's hard to take seriously when it feels so contrived.
An example of a manga which I feel does this better is Ciguatera, although I don't like it much either because it makes me feel bad and there's no romance, just anxiety. KitaKawa is also pretty okay and is also yuri, though still really over the top.