Let's give it a shot.

[He straightens and raises his voice.] I agree!! It's too cold to stay! At this rate, we might just leave~!

[And now the temperature is rising. That might have been risky, considering the ghosts might have tried to get them to stay more forcefully, so good thing it didn't backfire on him! Ahaha!]

Let's hurry before they change their minds. [Unaware of what she thinks about working together, he goes ahead.]