The personality of the pre-sealed Natsumi is best described as self-loathing. Natsumi had a physiological perception problem in which she perceived everything negatively including herself. She was prone to be jealous of others that have facial and/or body types that are considered attractive or beautiful, which she does not have. Reine speculated that Natsumi developed this way of thinking from past experiences on Earth while in her normal form. However, due to her power to transform and shape-shift, she tries to act and take on the persona of that form with a twist of her personality to do some mischievous deeds. Also, she created an "Onee-san" form in which she perceives as the perfect image of herself. However, it seems that Natsumi's true nature is that of a curious child that wants attention along the lines of: "I want to be noticed, I want to be praised, I want to be acknowledged, and/or I want to be liked."
Date A Live
"Before the world ends, kill me or kiss me." Thirty years before the events of Date A Live, an enormous explosion devastates east Asia and kills 150 million people. This is the first known "Spacequake", an inexplicable natural disaster that has since become commonplace. Fast forward to the future. High school second year Shidou Itsuka lives alone with his cute little sister while their parents are away. What do these things have to do with each other? While rushing to save his sister from a sudden Spacequake, Shidou is caught in the blast and, in the midst of the chaos, finds a mysterious girl. It turns out that this girl is actually a Spirit, a powerful being from another world whose arrival devastates the surrounding area. Thankfully, Shidou is rescued by an anti-Spirit strike team... led by his little sister?! This vicious task force is locked and loaded, ready to exterminate Spirits with extreme prejudice. But this violent method is not for Shidou. He discovers the one way to neutralize these Spirits peacefully: make them fall in love. Now, it's up to Shidou to save the world by dating those who threaten to destroy it!
