She falls into the river by accident

"Hey YU!!, how are you doing ?", said Chie as she did laps around the river.

"I'm fine, but how is that i never manage to catch you ?", he replied as he struggled to match her speed.

"I'm just simply that fast!", exclamed Chie proudly as she ran faster, while looking at Yu behind.

"Shouldn't you put attention to what's ahead of you ?", commented Yu concerned.

"And why would I ?, i know this road as close as the palm of my hand", she simply replied.

"I mean, watch out!!", exclamed loudly Yu as he pointed to a large rock in her track.

"Ehhh,, wait, what ?, AAAAHHHHHHHhhhhh!!!", yelled Chie as she accidentaly tripped with the rock, making her fall into the shallow river.

"'sigh', guess you were right...", she simply stated annoyed, for she was now completely wet head to feet.

"Are you right ?" Asked Yu as he arrived close to where she was.

"Yeah, i'm fine, just help me get out of here please", She responded, upon which, the two of them began to work to get her out of the river. However, something would happen during this that would complicate things a bit.