The manga of Spiritpact is not as good as the anime. Thats the first thing that came to me as I was reading and its absolutely treu. The art is good but it is quite lacking. After the intial chapters the plot becomes extremely loose. THe relationship between the main characters cannot be called freindship per say, but there must be a limit to slow burn. It drags on and on without and at some point it becomes rather boring. It isn't bad but just that I have seen better. You can absolutely go for it but if you are an english only like me, you will find out pretty soon that translated chaps for this manga aren't easy to get.