After the Nexus Shattering and his brother Jason Thunder being thrown to some unknown universe, Zachary Pyromaniac travels to different universes to seek out the Shards and his brother. On his way to collect the second shard, Pyromaniac meets Zachary Dearest, an alternate version of himself from the Friday Night Funkin universe as well as the Dearest family who agree to help him. As the others try to find Jason, Zac goes to find the remaining shards. But one of the universes he goes to is not what he expects it to be...

(Note: This story is mostly from Zachary Pyromaniac's perspective.)

You might want to read this first.https://www.fimfiction.net/story/537504/arrival-of-a-phoenix