Long had Outer-Moka been happy. She had been allowed to live as her own person for years, as though she was the true persona of Moka, and not a false one created to protect her. She had even fallen in love with Tsukune. She had made friends. She had lived a happy life, although it had all been a fake. She didn't hate Inner-Moka for it, either. The two of them had formed a sort of symbiosis, and they had become friends. Sharing a body would do that.
She knew that it was unrealistic of her to believe that she could live out a life in their shared body, but for the years that it had happened, it had been something like a dream. Outer-Moka had lived what some might call a life, despite being an artificial construct. All that she had to do was live, and keep Inner-Moka safe from harm's way. The Outer had long come to grips with the fact that someday, she might cease to exist. That changed, when she met Tsukune.
Tsukune was so earnestly nice and friendly to her where others had been cruel and harsh. He had been a light for her, in the world of darkness that she didn't belong in. After meeting Tsukune, along came all the others, who had shown her what it was like to have friends, and to be cared for. they had pulled her from her solitary pit of despair, and made her feel alive.
In time, she found her feelings toward Tsukune to be something more than friendship, and she struggled with them.
"I'm not real," she thought. "This isn't even my body. It isn't my right to entangle him in our mess." Even with Inner-Moka's approval, she was still reluctant to pursue any relationship. She was scared. Scared of how Tsukune would feel were he to ever find out, scared of how much that could hurt all of her friends.
After a while, she began to question her existence. She wondered exactly what it was that made something alive beyond the flesh-and-blood aspects. She knew that Inner-Moka was alive, but what about herself? Did those same principles apply to a person that was created artificially?
Just a one-shot about Inner Moka questioning herself. All pretty reasonable, methinks. Being a personality created artificially might cause some issues...