k3nsh1n4life

Yes that's where all the people was but the west hall had all the chill people and a peaceful environment except for tu karaoke room

yes I did see a lot of gurren lagann groups and I didn't really check near the entrance and it looks like you were there so that may be why

That's really cool! But the only thing I recall seeing that may have indicated anything about your presence was someone with the Gurren Lagann flag and a big group around them.