I have some bad news for the copers who hope that Asa will weaponize Denji.
Take a close look at the chainsaw Asa is holding. There are spikes. Know who else has spikes? Pochita. And who doesn't? Denji's CSM form.
Asa will liberate Denji from Pochita and Denji will liberate Asa from Yoru.
There, you've got your ending to P2 spoiled, you can stop reading now.