Dual soul

You were once two separate people, perhaps siblings or lovers. You might of been sworn enemies. Then some event happened and you became two souls in the same body. This often times confuses other people as you talk to the other soul. If you hate the other soul then just know there is one thing that both souls want. To survive. Even if you have your disagreements with the other soul, you can put aside the differences if a dragon is chasing you.

Features

Duality

As you are two people in one body, you can switch between souls when you want. When you do, switch character sheets to the other soul, keeping the Strength, Dexterity, and Constitution scores. This second character sheet may also choose to select a different class. Skills and proficiency are different on the second character sheet. You may also speak to the other soul as if it were a person standing in front of you. In addition when you go to sleep, the other soul comes out, although both souls are subject to spells that cause affects such as sleep and fear.
As aside note, Hit die is always 1d8 with this background despite what your class may say.

Joining of souls

Every soul has a story, but your souls combine their stories at some point. How so?

D5	Joining of souls
1	Cursed to be in same body
2	Magic allowed souls to be in one body
3	Two souls fought for the body at birth and got stuck
4	An otherworldly entity tried possessing you but failed
5	Come up with your own story?

Suggested Characteristics

It's interesting having two souls.

D6	Personality Trait
1	We always fight and are on oposing sides of an arguement
2	We usually are opposites of eachother but we do our best to cover eachothers backs
3	One of us is shy, one of us is bold. Which is which?
4	We both agree that it's fun messing with other people.
5	Where one's weekness is, the other makes up for in strength.
6	It's odd how much you hate it when you are not in control of your body. Although I should ask if it even is my body in the first place.

D6	Ideal
1	Even though we are two different people, we believe in the same things. (Lawful)
2	Too many people confuse us for us to not act completly different. (Chaotic)
3	Even if we are different, there's no reason to harm others. (Good)
4	We've got too many things on our minds to worry about others. (Neutral)
5	Why bother trying to hide who we are? If someone doesn't like us, we'll kill them. Simple. (Evil)
6	The only reason to hide yourself is if you are scared, and we are not. (Any)

D8	Bond
1	I would do anything for (Insert other soul's name). I feel that my life wouldn't be the same without them.
2	We were married before we got "Cursed." It's actually a blessing as far as we are conserned, although we won't be able to have children unless we adopt.
3	(insert other soul name)! You can shut your trap!
4	I may hate (Insert other soul name), but I got to admit that they are useful.
5	We love different things, but we let the other have their fun when they are out.
6	We are trying to get (Other soul name) their body back. No (other soul name) this is MY body not yours!
7	Yea, we are two people in one body, but we've made it work
8	It's a pain, but we don't mind being together

D8	Flaw
1	I hate them, they hate me, we just copperate cause we're stuck. (Was singing that when I made it)
2	I'll sometimes force myself to go to sleep so that the other one will come out against their will
3	We hate admitting that we rely on eachother.
4	One of us is of a different race and doesn't want to admit it
5	(Soul 1 speaking) We've been together for so long, I'm finding it harder and harder to keep who is who clear.
6	Somehow we are both on the same weavelength when it comes to wanting to steal stuff.
7	It is sometimes too easy to tell us apart because of our polar opposite personalities.
8	It's hard to get the other soul out due to them being incredibly shy and it's hard for me to give control to them at the same time.