[Rinni]

Intro-Extro is a girl afflicted with split-personality. Intro is the sweet, shy personality, who suffers from social anxiety. Extro, on the other hand, is loud and outgoing, friendly and vivacious with more confidence than you can shake a stick at. The two identities are quite aware of one another and view each other as sisters. They both look forward too and fear the day they will become one again, for while that means they'll be whole once more, that also means they will cease to exist as individuals. When the time comes to make the choice, will they choose to remain separate or unite together to be what they once were?