According to Dir En Grey's OHP, this live took place at the "Neo Behind the Mask" event. In an interview with ASAGI, Shinya also confirmed the venue. Interestingly, an ad gives the event name as "SUPER FEVER BATTLE" instead of "Neo Behind the Mask" and doesn't include Dir En Grey's band name. However, according to Dynamite Tommy in Haiiro no Ginka #24, the band did indeed perform at this event. It was the band's first outdoors and first daytime live.
Kyo also gave a member of another band a demo tape with unknown contents at this live.