Is Gintama episode 187 filler?
Canon No, episode 187 of Gintama is canon.
#187
It's Goodbye Once A Flag Is Set
フラグを踏んだらサヨウナラ
Aired 10 Dec 2009
Canon No, episode 187 of Gintama is canon.
#187
It's Goodbye Once A Flag Is Set
フラグを踏んだらサヨウナラ
Aired 10 Dec 2009