Rain was a newly summoned water ghoul and wanted to see his first thunderstorm up close. He walked outside despite Copia warning him not to. Rain stood out in the yard, just staring up at the sky. Unfortunately, he was wearing a watch and in an open field, so he got zapped by lightning. He was scared of storms for awhile after that, but when Sodo told him that lighting could strike through the roof he started sleeping in your room on stormy nights. Tonight was one of those nights.