Accel World - S01

Reverberation A strange avatar has taken over the Umesato Junior High Local Network, locking students inside and stripping them of their clothes and possessions. When Kuroyukihime discovers that other schools are experiencing the same issue, she brings together Haruyuki Arita and the rest of Nega Nebulus-one of the Seven Great Legions-to uncover the truth behind the attack. Vacation Haruyuki has a physical re-examination in two weeks. If he doesn't pass, he'll be barred from joining Nega Nebulus in any future territory battles. Determined to keep their "Silver Crow" in the fight, Chiyuri Kurashima steps up to help Haruyuki get back in shape before the test.