- Devil Children Black Book & Red Book: Boss Race; Ally (Black Book), Boss (Red Book)
- Devil Children White Book: Boss Race
Devil Children Black Book & Red BookEdit
"A wee bit precocious female Petit Frost capable of manipulating ice."
Diana is a citizen of Ice Land, and part of a resistance group against the tyrannical rule of Hel. Prior to the beginning of the game, she and other members of the resistance were arrested and sent to a prison cell inside Eljudnir, Hel's castle.
In Black Book, Setsuna Kai is also sent to Eljudnir after being arrested in the Central Land, and so both groups decide to join forces so they can escape together via a tunnel. Later, Diana tries to infiltrate Eljudnir in order to steal the Blue Messiah Horn, but is found out and captured. Setsuna then defeats Hel and rescues Diana, who gives him the Horn as thanks. Setsuna leaves the Ice Land and heads to the Marble Land, where Cool is heavily injured by Abaddon, forcing Setsuna to look for a cure. The cure is in possession of Vibhishana, who gladly gives some to Setsuna. If he returns to the Ice Land after this event and visits Dust's house, the Yeti will tell Setsuna that Diana has gone missing. She can be found inside the Frozen Cave leading to Frost Town, where she'll join the party.
In Red Book, Mirai Kaname is manipulated by Azel into thinking that Setsuna is an evil Devil Child who is plotting to destroy the Expanse. Mirai is sent to the Ice Land so she can help Hel capture a group of "bandits" who recently escaped from prison. Diana and her friend, Dust the Yeti, battle Mirai in order to give Setsuna the time to escape to Marble Land. In battle, Diana is fought alongside two Jack Frosts. After being defeated, she remarks that Mirai's eyes look beautiful. Diana cannot be obtained as an ally by regular means, only by being traded from Black Book.
Devil Children White BookEdit
Diana is not involved into the game's plot and can't be found anywhere. She can only be obtained by trading.
Devil Children Black/Red/White BookEdit
|Playable||Mirai Kaname - Setsuna Kai - Cool - Veil|
|Non-Playable||Nagahisa Kai - Elegy - Zett Takajō - Lucifer - Azel - Hoshigami - Zebul - Michael - Diana - Dust - Paimon - Isis - Souta - Hel - Norn|
|Expanse||Ice Land - Marble Land - Sand Land - Forest Land - Fire Land - Central Land - Sanctuary - Deep Hole|
|Other||Vinecenter - Shop - Bank - Hotel - Casino - Trainer - Shady Laboratory & Manor|
|Songs||Go-Round - LOVE SICK - Tenkai no Aurora ~ AURORA HEALING - Idol ~IDOLL~|
|Terms||Devil Riser - King Riser - Macca - Magnetite - Expanse - Devil Child - Angel Child - Devil Database - Devil Phone - Keys of Norn - Vinecom - Type|
|Lists||Items - Demons - Skills - Status Changes|
|Productions||Shin Megami Tensei: DeviChil|