UnderBael Challenge

Inspired by: Glitchtale by Camila Quevas. Specifically, the way Chara attacks.

Series: Undertale and HighSchool DxD crossover.

Backstory: Chara is the next heir for the Bael family of devils. Some conflict forced them away from their home and sent them down Mt. Ebott. Things go as canon as far as the mythos of Undertale is concerned.

Upon the arrival of Frisk, a human with just as much determination as themselves, Chara bonds with them effectively making Frisk half devil and Co-King of their peerage. Throughout their journey the two find Chara's other Evil Pieces. Upon the completion of the pacifist run, Chara/Frisk use their Queen piece to reincarnate Asriel and everyone goes topside. Then the Abrahamic factions take notice.

Rules:

Create an original fic using the above prompt.

Frisk and Chara can be any alignment (Evil, Lawful, Nuetral, Chaotic, Good), but must finish the true pacifist route.

Frisk must at some point meet Rias and/or her peerage. This can be during or before Highschool DxD canon.

Asriel must be Queen of the peerage.

It is Frisk's body and they have the most control. Though Chara can take over in times of immense stress or life-threatening situations.

Chara and Frisk have a mutual respect for eachother.

The other Evil Pieces can be used on any character from either universe provided the character isn't already taken.

Frisk and Chara are non-binary, but the author must decide on a biological gender for Frisk's body.

Guidelines and Suggestions:

Flirty Frisk

NarraChara

Frisk Harem/ Pairings

Other Pairings (I am fueling the toxicity of this fandom, I can tell.)

Interesting reason why Chara is/was underground. Example: Arranged marriage, kidnapping, ect.

New attacks for the protagonists and the monsters to fare better in the DxD verse. (Refer to glitchtale and the like)

Other Undertale AUs mixed in. (Fell, Swap, Shift, Error, Ink, Core!Frisk, ect.)

Multiple POVs

So here's my next challenge. I'm at that awkward stage of a fandom where I can undertand other fics and AUs easily but I can't write my own very well. At least, I'm that way for Undertale. I was rewatching Camila's Glitchtale series (youtube, go look it up, it's very good) when I thought "Chara's attacks seem very similar to the Power of Destruction from DxD" and this is the result. Have fun guys.