Accel World - S01

Reverberation A strange avatar has taken control of the Umesato Junior High local network, locking students in and stripping them of their clothes and possessions. When Kuroyukihime discovers that other schools are experiencing the same issue, she calls on Haruyuki Arita and the rest of Nega Nebulus-one of the Seven Great Legions-to uncover the truth. Vacation Haruyuki has a medical re-examination in two weeks. If he doesn’t pass, he’ll be barred from joining Nega Nebulus in future territory battles. Determined to keep their "Silver Crow," Chiyuri Kurashima steps in to help Haruyuki get in shape before his checkup.