Shunsuke urges Yuu to stay with Ayumi at the safe haven until his abilities disappear. In the research facility, Tsutsumiuchi explains that people possess their special abilities as a result of inhaling particles spread by a short-period comet called Charlotte, which passes Earth every 75 years. A vaccine is being prepared before the next pass of the comet. Shunsuke's aide, Furuki, is threatened into handing Kumagami over to a group of foreign terrorists in a factory...