Inuyasha

Inuyasha was making fun of Sesshōmaru's serious and distant attitude on an ordinary day... But without showing it because he knew that he would easily get angry. The old woman Kaede was not very happy with Inuyasha's behavior towards his own half-brother... So out of pure curiosity she made a potion, asking Inuyasha to get a small lock of Sesshōmaru's hair... Which he succeeded in doing, but he was very close to dying because of it, thank God that was not the case.
"Inuyasha, take this, I've wanted to try a potion for a long time, and this is the perfect opportunity, you'll be able to see Sesshōmaru's past for less than 2 hours while you sleep, or so I think. As far as I remember, it's not dangerous, they're just hallucinations that will show you everything he saw in his past."
The old woman Kaede explained, giving Inuyasha a small vial containing a purple liquid.
"This is stupid. But hey, I don't want to get a "Down" from Kagome."
Inuyasha groans.