While I'm not sure if the manga is better or not I am watching this first. So I think if you are watching this first and like it and are asking those questions like what happens next, or is there more story? Then once you watch this you can read the manga and better appreciate it cause then you can actually put voices to the characters and it makes for a more enjoyable experience. While I have'nt read this one I am reading Naruto and it's alot more intresting that way in my opinion.
As far as this episode goes, what cold hearted being could be any kind of mean to that poor little girl? They are so gonna burn in the underbellies of the lake of fire!!! lol