Review Detail of LeonToralla in Great...I'm A Devil Swordman (DxD)

Normally I don't do this but here it deserves it: I don't recommend reading this fic at all, the author wastes our time for 38 chapters just to kill his MC and erase the world, then a second MC begins which is worse than the first, the quality dropped a lot as well as the development, a shame because I had a lot of faith in this fic