Mushoku vol 15

I already know few spoilers about mushoku.But recently i jumped to read vol 14 end and started vol 15

Here I saw a lot of edit of old rudeus meeting the young one and telling his future to prevent his downfall.

Rudeus talked with man god and mangod said to kill orested.

Bro nanahoshi clearly described rudy to talk to orested first.IDK why rudy is so afraid of orested.Even rudy know that mangod killed his family in the future.IDK why rudy trust mangod so much

Its really frustrating. I the middle of vol15