@marciosmg
To get more white character tendency you'll have either help other players as Blue phantoms (you'll get a 5% increase towards white) or you'll have to kill other Black Phantom players that invade you (you'll get a major 30% boost towards white).
To check on your character tendecy you'll have to check the statue on the middle of the world tendencies menu's, the whiter the statue is, the closer you are to PW CT, it works pretty much like the shrines do.
Also, to get back PW WT you'll have to do similar things as well, but it doesn't matter if you finish the game you are in Pure Black World Tendencies, since all World Tendencies reset when you start New Game +
The same doesn't apply for character tendencies though, make sure you get both the Foe's ring and the Friend's ring on your current game.
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"
