The last episode was the five main chars abandoning
The orginization...
They could season 2 about destroying the organization
And stopping yoma from appearing since the orginization
Themselves were purposely supposely creating yoma
In the first place, they could continue with fighting the awakened bosses and the orginizations #1-5 (ofc they would have new ones by now)
Theres so much they can do in a new season