Hidden giant breasts, which match cat ears abnormally, seem to be born a woman wearing cat ears [4]. Wearing glasses, wearing two three-strand braids (a braid before spring break) and neatly cut bangs. However, after the cultural festival, she was cut into short hair because of "lovelorn", and her bangs were replaced with feather scissors and her glasses were replaced with contact lenses. To this end, it is said that the level tutor fainted, the school year director was hospitalized, and even the principal wrote his resignation to show his responsibility. In the short story "Wings and Singing", it is revealed that Yuchuan's braided hair was actually cut by her [5]. After the "cruel tiger" incident, my hair became black and white like tiger skin lines, so I dyed my hair black every morning. Kind-hearted, gentle, good for everyone. Work conscientiously and methodically, attach importance to laws and norms, and be strict to a heterogeneous degree. Because she grew up in a special family environment, she didn't want to be considered a misguided person. Based on this little anger, she kept the commandment [6]. The only wish is to "be an ordinary girl" [6]. In order to become an ordinary girl, I have forced myself to avoid facing up to the reality that is not conducive to me since I was a child, and constantly cut my heart and cut out the "I" (dark side) that is not conducive to me, so as to keep the original purity and exquisiteness [7]. In this way, Biography of Kuroha and Harsh Tiger were born. With a wealth of knowledge, the books in the library were almost finished when Yuchuan 15 years old [8]. With keen insight, he can make a correct judgment in any situation, and is also regarded as a very difficult existence by Oshino Meme.