Nyx.
Like she manifested with a mix of kirijo messing with the sea of souls and humanity's collective desire to die bringing the persona of death itself in physical form.
Persona 3 was made in 2007, which is very different from 2024. It feels like doomerism is more rampant and if the collective unconscious was real something like nyx would be even more powerful than the one we see in persona 3
http://i.imgtc.com/iJyp6bF.png http://i.imgtc.com/ZBw36Qh.png
Thanks for the peeps that made the pics <3 if i make typos it means i am on phone