英文あらすじ（Synopsis）：

However, at the end of a strenuous, three-minute exercise with no air in lungs, Aya is finally reminded that she is only human....

　
　　　　　　　　　　　　　　　　　　　「・・・・・・・・・・・・」　

　　　　　　　　　　　　　　　　（んぐっ。んんんんんんっ）

"Aya!"
Chihaya was horrified. Aya was now sucking in seawater. She first looked somehow bewildered, as if trying to figure out what it actually was that she was gulping down to cause such an enormous pain in her trachea. Aya then winced and started coughing violently as her lungs desperately tried to draw in air. Her thin body went into terrifying convulsions. Her eyes rolled back to reveal the whites of the eyes. Aya was drowned.

Now, Chihaya had only herself to pull it off.