@marciosmg
Nice getting the friends ring! You can now be a superb Blue Phantom helper! :D
Yes, all of the PB WT events consist exclusively of getting the NPC's BP and Primevil Demon's, but make sure you got the Large Sword of Searching before doing the next Primevils, unless you're lucky and all the Primevils so far have given you Colourless Demons Souls, you'll need that to boost the chance of those Souls dropping
Basically, the run down to get Black Character Tendency is to kill every NPC in the game that you can find xD The best way though is to kill the World's NPC's, especially the vendors, that will cause a huge drop towards Black CT.
Current PC Build
CPU - i7 8700K 3.7 GHz (4.7 GHz turbo) 6 cores OC'd to 5.2 GHz with Watercooling (Hydro Series H110i) | MB - Gigabyte Z370 HD3P ATX | Gigabyte GTX 1080ti Gaming OC BLACK 11G (1657 MHz Boost Core / 11010 MHz Memory) | RAM - Corsair DIMM 32GB DDR4, 2400 MHz | PSU - Corsair CX650M (80+ Bronze) 650W | Audio - Asus Essence STX II 7.1 | Monitor - Samsung U28E590D 4K UHD, Freesync, 1 ms, 60 Hz, 28"
