Father's Old Enemy: Ryukotsusei Inuyasha : Season 1 Episode 53
TV-14 YTV 22m
Aired: December 3rd, 2001 @ 7:00 PM EST on YTV
Totosai tells Inuyasha that piercing the heart of Ryukotsusei, the demon that gave his father his mortal wound, will make his Tetsusaiga lighter. Inuyasha then decides to kill Ryukotsusei.
