Kioku no Dissolve

Recently, I've started having sex without being aware of it.
I'd just be talking to someone, but when I come to, we'd be in the middle of intercourse.
...I can't tell anyone. I couldn't possibly talk about this with my family.

"It might be dissociative identity disorder."

The other me is so bold...
What could be the cause of her creation...?

"Am I being watched...?"
"Stalked?"
"What is happening...?"

[Translated from DLsite]