Um, Split personality? You should literally be the same person as the other guy. Like, the two of you typically should basically say everything at the same time until you adjust...Granted. A second you! Do you NOT see the applications of this?

No?

...Great, now I feel guilty. Was the scroll a cursed dud? It was a dud until I made it not a dud...*Looks at the useless scroll very hard*...No, not a cursed scroll, should work perfectly...

...Uhh...

...Tsundere? Are you Tsundere?!