Boys, boys, boys, you are all so impatient / roused up. It's only chapter 18 of a manga with short chapters. This is douki-chan's first opportunity after she finally mustered the courage and it's not surprising that it failed; after all, she has strong rivals that will interfere as much as they can (it's not fireworks or some other silly, coincidental interruption) and that should keep things interesting... so far no annoying characters...
I'm just here to watch the suffering and the occasional small victories of our hapless, adorable douki-chan...