[Well here's a familiar face he can try to make it up to that may be a bit easier to persuade than someone with multiple interactions with him before, like Sora. He's out here helping his followers, but he can spare a minute to go talk to her.]

Hey Natsuru-chan... you look like you're ready to enjoy the day. Could I buy you an ice-cream?

[He finally rounds to face her, a far more genuine smile than she saw him with last.]

To make up for before.