Sinful Spirit Magic

Sinful Spirit Magic (魔法悪いエスプリ, Hakaisou Supiritto no Mahō) is a Caster Magic, Holder Magic, and most importantly, a Summoning Magic that is considered one of the most ancient and forbidden forms of summoning magic said to exist on Earth Land. Classified as a Lost Magic that was said to have been lost to the sands of time, Sinful Spirit Magic became reintroduced into the world by several casters who discovered the magic and have made use of its almighty power to summon Sinful Spirits from the Sinful Spirit World to Earth Land.