Rainverse Wiki is a fan-built reference site dedicated to the comics and creative universe of Jocelyn Samara DiDomenick. For more than a decade, readers have collaborated to document Rain, My Impossible Soulmate, and related works, with the wiki presenting character guides, chapter listings, story information, polls, and community resources. Rain is a slice-of-life, comedy, and drama webcomic about Rain Flaherty, a transgender teenager navigating her senior year of high school while identifying as a woman.

Its story explores friendship, identity, romance, and complex relationships through an ensemble cast and a mix of humor and emotional drama. My Impossible Soulmate is a romance-fantasy isekai webcomic, written and illustrated by DiDomenick, and a prequel to Rain. It follows young Chiaki Koizumi, who later becomes the author of the fictional manga Black Wings Kaminari; its main cast is largely LGBTQ.

The wiki also points readers to current and archived polls, ways to contribute, and external destinations for reading the comics, buying Rain books and merchandise, and supporting the creator