Plot Holes

It was a normal day and pretty boring. They where just at the store for groceries until Jio snuck up behind Ryoko with a feather she had produced from somewhere and triggered his allergies. With a powerful sneeze, both teens felt themselves falling through a magically produced hole at their feet and landing in a very familiar bar.
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Jio and Ryoko, two normal teens suddenly become part of the My Hero Academia universe through a freak accident with a sneeze, a hole, and a feather. Because of their arrival, their storyline seems to be falling apart, the longer they stay and now they need to navigate their way throughout the story without destroying it.