On his first day at Tensei Academy, the new transfer student meets Hiiro Ryuugasaki and discovers Shadowverse — the card game — and the school's Shadow Club that plays it. He joins. The problem: the Shadow Club has been inactive for long enough that it is about to be shut down permanently. Hiiro and the new student decide to revive it, and in the process get drawn into events at the school that nobody saw coming. A card game RPG about rebuilding a club from nothing.