@nen-suer
Don't you mean world 4? Satsuki only appears on the Shrine of Storms :P In world 3, it's Rydell whom appears.
Also, don't make the world Pure White yet! Don't forget the Primeval Demon in 4-2 which has a Colourless Demon Soul (it has a 75% drop chance, 100% if you have large sword of searching). You'll need those Colourless Demon Souls to upgrade your unique weapons (http://demonssouls.wikidot.com/valuable-weapons) plus, you'll also need 3 Colourless Demon Souls to get a Miracle from Saint Urbain, needed to get the Gold Trophy for all Miracles gathered.
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"
