>> See all items of Monogatari Series
Tsukihi Araragi is Koyomi Araragi's little sister. Karen Araragi is the elder little sister.
The two sisters call themselves the Fire Sisters, allies of justice. In Bakemonogatari, they only appear in the episode previews, but they are main characters in Nisemonogatari.
The truth is... There is an unexpected fact, but I can't touch on that here. If you're interested, please watch the show.
Tsukihi's charm is probably her kimono-clad figure.
A fan of Japan like yourself will definitely like Tsukihi-chan, who wears kimono. She really is cute.
Even though I don't especially like kimono, I'm madly in love with Tsukihi-chan... Unfortunately, it appears she has a tall olrder boyfriend called Rousokuzawa. Damn it. I'm platinum mad[「プラチナむかつく」. (Purachinamukatsu is a phrase Tsukihi-chan says is Nisemonogatari.)
Though she wears a kimono and seems like a quiet girl, the truth is she is more ferocious than anyone, and that ferocity is famous throughout the whole town.
By the way, she's got a serious brother complex, and once, when she was confessed to before, she refused with the reason being she loved her big brother (Koyomi). I'm jealous of Koyomi - no, it's inexcusable!!