As soon as the umbrellas are gone, rain.

Cliff_Edge said:

As soon as the umbrellas are gone, rain.

Papa-gasa was the one praying for sunshine, so it went with him.

Maybe Kogasa-papa did pray his food weather, and now he's gone...

Reader-added tags include: "Main Occupation", "*Since it's out of operating range, it started raining (reference to VRs that don't show parts of a section showing a message simmilar to this)", "On Schedule", "Goodbye Kogasa-san?" and "A survey which I want to exorcise."

This survey is a bit of a spook:

Why do you think this happens?

• A curse
• A previous incarnation did something
• He's liked by rainclouds
• He unconsciously chases rainclouds
• Coincidence

I vote... the middle one. Perhaps he's a storm god, and all the little rainclouds are trying to make him happy?