I pronounce it as Fi, it's the same pronunciation as for the Greek alphabet letter φ or symbol for golden ratio. Pi in my head sounds more like pronunciation of π I need to hear more people about this (༎ ෴ ༎)
Then what happens ? Why is this such a big deal? I mean i know he’s very strong but what’s the significance of him being a primordial and under Rimuru?
Being a primordial means being one of the first 7 demons, so one of the oldest who gave "birth" to all of the others, and Rimuru managed to give him a name, showing how they are way more powerful than a primordial, which is a big deal and never happened before
really hoping he's not dead yet, considering the fact that he's half curse and half human. His cursed technique is also manipulating blood so LET'S NOT LOSE HOPE
Finally after years (づ ̄ ³ ̄)づ