Threat of the Dark Chip!

English version title - Threat of the DarkChips Netto witnesses an innocent boy's net navi be overcome by a dark chip and run off from him. A strange woman in a black trench coat appears to be responsible, but Netto loses her trail. Her name is Yuriko, and she's a Darkloid member and Mariko's twin sister! Able to disguise herself as Mariko, she lures Netto into a trap at an old warehouse and offers him the power of a dark chip...