Sakura and Shirou
As the two of them walked through the unnatural shower of rain, they came across a man simply lying on a bench, seemingly neither surprised nor bothered by the unusually-localised weather. As they approached him, he turned to them and, with a smile, commented on the weather.
"I preferred the sunshine, personally", Sakura said, giving him a smile back.
"This weather seems unusual to me", she added. "Usually clouds are larger than this. Is it your doing, by any chance?"