Akiko Hiiragi

- Hiiragi Akiko pretends to be Lightning-Fast Knight-Hart/Neidhardt aka Nishijou Takumi in order to gain information from Hashida Itaru and Okabe Rintarou. SERN discovers the existence of Okabe's Reading Steiner and that according to Amane Suzuha they will succeed in building a time machine in the future. - SERN continues with human experimentation and forces Makise Kurisu to watch. - (2011/12/21) Hiiragi Akiko and several Rounders experiment to prove world line convergence by shooting Okabe repeatedly at close range only to fail to kill him. - (2011/12/29) Okabe and Daru are kept under Rounder observation after being freed and sent back to Japan in order to not disturb the world line convergence.