He'd be curious. Harry has always been interested in new things related to magic. So he'd likely start reading with great interest, but might soon be shocked by some of the more extreme elements in Soul Eater.
Black Star would probably see Asura as a new opponent to prove his strength against. He would be eager to fight, shouting his usual boasts about being the one to defeat the most powerful foe. However, he might quickly realize that Asura is on a whole different level and would need to rely on his friends more than he thought.
I think it is. The plot has depth, the action scenes are exciting, and it has a good mix of humor and drama. However, it might not be for everyone depending on personal preferences.
The 'Soul Eater Novel' mainly focuses on the adventures of the main characters. For example, the meisters have to train their weapons to become more powerful. It also delves into the darker aspects of the world, like the existence of witches and demons. The characters face challenges that not only test their physical strength but also their mental and emotional states as they strive to reach their goals.