Nevan

Nevan the Sorceress of the Abyss was one of the demon gatekeepers sealed away in the Temen-ni-gru by Sparda. She appears as a boss in Devil May Cry 3: Dante's Awakening in Mission 09 and after Dante defeats her, she becomes a guitar-like devil arm of the same name.

Before Devil May Cry 3
At some point, Nevan had encountered Sparda and was consequentially sealed away in the Temen-ni-gru while acting as a gatekeeper.

Devil May Cry 3
Dante meets her on his path down to the Lair of Judgement. When he enters the Sunken Opera House, she greets the young demon and begins flirting with him. After their flirtful banter, both demons then engage in battle and results in Dante defeats Nevan. She relinquishes her soul to Dante as a Devil Arm shortly after.

Appearance
Nevan appears as a gray-skinned woman with long red hair that covers her breasts. She wears a dress-like cloak that's made entirely out of bats and covers the lower portion of her body.

Personality
A natural seducer, Nevan often flirts with people and even uses her body in a seductive manner to lure them down the dark path of hell or to kill them. In addition to being seductive and dangerous, she also appears to have some level of humor and is at least capable of being attracted to others, having referred to Sparda as a "handsome devil" and further stated Dante was "no slouch" himself.