Gag Manga Biyori: Jump Festa 2002 Special (2002)

When rising idol Saki's autograph session is a complete flop, her editor is stumped. He comes up with the idea of intimidating a young student to boost her popularity. When that fails, he proposes a public showdown between Saki and a rival idol fanatic named Bururu. Meanwhile, a group of teenagers' botched attempt to summon Satan forces them to try and banish him, but their efforts only seem to enrage the devil. Can they escape the consequences of their actions?