Accel World EX EP1 - Reverberation;残響

At Umesato Junior High Kuroyuki calls for a student council meeting, due to certain incidents happening on the school network: Students are being trapped in the network after school and their avatar's clothes and items are stripped. Apparently these are the acts of a skilled hacker. Now it is up to Kuroyuki, Chiyuri, Haruyuki and Takumu to set a trap and catch the culprit.

— written by foo2