Inuyasha Volume 19 is a manga by Rumiko Takahashi, and it was published in North America by Viz Media in 2004. The series is rated “T+” for older teens. I agree with the rating for this volume, since there is a bit of violence included in it.
The first story in Volume 19 continues exactly where Volume 18 concluded. Sango’s younger brother, Kohaku, is with Inuyasha and the others. Kagura, one of the “offspring” of Naraku, has come with some demons to try to get Kohaku back.
During the fight with Kagura, Inuyasha entrusts Kohaku with Kagome; unfortunately, things with Kohaku aren’t what they appear to be.
In the next story, Inuyasha’s brother Sesshomaru consults an old friend of his father’s about a transformation he had seen Inuyasha undergo in an earlier volume of the series. Sesshomaru learns that Inuyasha’s sword, Tetsusaiga, holds an answer to Sesshomaru’s question.
Meanwhile, Inuyasha, Kagome, and the others help an old man and his grandson back to their village. Not too long after leaving, Inuyasha can smell a lot of blood coming from the village. It turns out the village has been attacked by a group of bandits who are unknowingly being led by a demon. Inuyasha battles the demon, and is caught in a trap; Inuyasha’s transformation plays an important role in this story.
A third story begins in Volume 19, but it is not resolved at the end of this volume. Inuyasha has been trying to wield a heavier Tetsusaiga, which ultimately caused him to lose control and allow the transformation to happen while battling the demon. He goes to see Totosai, since he was the one who forged Tetsusaiga, in order to get some help for learning how to master his heavier sword.
Totosai tells Inuyasha he needs to kill Ryukotsusei, a demon Inuyasha’s father had battled and sealed away. The volume ends with Inuyasha reaching the place where Ryukotsusei is sealed.