It's Goodbye Once a Flag Is Set Gintama : Season 1 Episode 187
TV-14 TV Setouchi 25m int(0)
Aired: December 10th, 2009 @ 1:30 AM EST on TV Setouchi
Yorozuya reinvestigates Rokkaku Incident. When the truth comes out, they head to Okita and his company to help.