Rain

glory and gore

There for you and me

After her parents died, Asa started to isolate herself so as to not experience loss and grief again and because she thinks everyone who becomes close to her gets harmed due to her mistakes. Sadly, every experience she has had since Part Two started more or less validated her thoughts and for this reason she went on a second date with Denji to warn him to stay away from her and keep him safe. But then the Falling Devil appeared and unlocked one of her past memories where it is revealed she gave up Crambon—the cat she saved and her only remaining loved one after the Typhoon Devil's attack—so he could live happily someplace else, yet the cat died anyway.

I think this memory and then seeing Denji in danger (due to something she's not the cause of) is going to make her realize what Denji learned in Part One, that not matter how much you try to avoid bad things they’re going to happen anyway but that shouldn't mean you have to remain in fear and deprive yourself from living life to the fullest—a philosophy represented by the City Mouse whose path Denji embraced and which ties with Asa's wish of living more selfishly. Seeing Denji in danger could be the critical moment for her to sort out her feelings towards him, feelings she repressed in order to protect her pride and ease the burden of her self-imposed loneliness.