Seeing that the situation was irreversible, Mercury and the others could only seal off the secret research facility from the outside, preventing others from discovering anything unusual there, and planned to return later to retrieve Hel's divinity.
As the secret research facility was sealed from the outside, Hel's resentment came to an end.
Hel, or rather the collective resentment of all the experimental subjects who died in the secret research facility, directed towards the Illuminati. When Hel received the Painter's help and broke free from Mercury's contractual restraints, she had already dealt with all the other staff inside the secret research facility.
The only one left alive was Mercury.
The final target of resentment naturally also pointed to Mercury.
[Completely kill Mercury and let the souls rest in peace.]
