When Hope and Wrath noticed the number of humans, they also wanted a part of them, as both demons and angels have low reproduction. That was when this planet got the attention of all the true gods, and become the center of the war between races.
When angels appeared, the humans thought they are mensagers of their God Emotionless, making the Angels confuse to why was so easy to convert them to their religion, without knowing, both Hope and Emotionless started to fuse because of the faith of the humans. When i grand number of faith accumulats, anything its possible and they believed that Hope was Emotionless and viceversa, so because of that they fused. The same happened to Wrath and Fear, because of the evasion of Demons, humans started having fear for Wrath, and because Fear and Wrath are compatible, since they represent fear and rage, they fused too. Afther that there was only 3 God left, me, God of Angels and Demon God.
As time went on, almost all humans believed in one or the other.