As someone who has read the Manga many times and can't get through the anime no matter times I try. The manga is so much better. Sesshomaru starts out as a definite neutral or chaotic Evil. I am still new to D&D, but his evil is very selfish, and prideful. By the end of the books I would say that he is chaotic Good, but he is too prideful to admit his change in alignment with even himself. Every time Naratu does something to Run, kidnaps or some thing else, he always his to her rescue. But always hides behind prideful reasons for doing it, when you can clearly easy between the line's and see he just cares about her and won't admit it to himself