While reading an interesting mystical book, Toshinori came across one of the dangerous summons, but one very interesting one. Summoning an Angel. The former number 1 hero wondered if this was really possible, was it possible to summon someone from another world?

Having prepared the necessary products and even drawn a pentogram, he began the ritual. But he didn’t even notice how he made a mistake in the spell and summoned into the mortal world not an angel, but the Demon himself.