So cute yet so vicious

I know I promised myself that I would not start too many new manga series but when I saw the title I had to get it. "Murder Princess", such a diametrically opposed name. A beautiful princess is running for her life, Her father has just been killed in a coup by a whacked out mad scientist with one really bad hairdo. She trips over a cliff and tumbles toward her death only to crash head first into the head of a bounty hunter. Thanks to some freak cosmic fluke they switch souls. Now the body of the beautiful princess is being inhabited by the soul of a blood thirsty, rowdy, war monger and vice versa. Is this a bad thing? Not for the parties involved, the princess Alita is now safe in a body none of her would be killers recognize and the human killing machine Falis gets all the fun she can stand. Everyone is happy except Alita's grandfather and... oh yeah, all the people Falis killed. You can't make everyone happy.

After School Nightmare volume 3
Blame! volume 8
Chibi Vampire volume 4
Destiny's Hand volume 1
Murder Princess volume 1 (Author of Comic Party)
Oh My Goddess volume 26
Scrapped Princess Novel 2 "Song of the Forgiven"
Scrapped Princess Novel 3 "Requiem for the Infidels"