Young Summoner - when he skipped the beginning of the tutorial and started from the middle. (summoning a succubus)

A succubus is a demon or supernatural entity in folklore, in female form, that appears in dreams to seduce men, usually through sexual activity. In modern representations, a succubus is often depicted as a beautiful seductress or enchantress, rather than as demonic or frightening. The male counterpart to the succubus is the incubus.