Board Thread:Questions and Answers/@comment-32948273-20160129174948/@comment-26090671-20160209221445

"then how come you still get the neutral ending in which the monsters are alive"

Because you restored your SAVE file back. Duh... It's obvious.

"One day, they all disappeared without a trace".

I suppose after he got 6 SOULs and cut your connection to the world (crashed the game), he loaded his own SAVE (his reborn as a Flower), just went on rampage killing all monsters and humans (he could easily come through the Barrier I suppose, because it doesn't apply to him). After that he let you return in the game, through his own SAVE file, because he wants to steal your seventh SOUL and do what he truly wants. TRUE RESET.