Tadakuni's younger sister. She is usually violent and hits Tadakuni, Hidenori, and Yoshitake when they do something to her —for example, steal her underwear. 

Tadakuni, Hidenori, and Yoshitake are students at the all-boys academy, Sanada North High School. This is a tale about just that—their daily lives as students. Winning the basketball tournament? Finding true love? You won't find any of that here. Whether it's sparking random arguments while hanging out with friends, meeting that one weird co-worker at a part-time job, or even letting imaginations run wild on a windy afternoon, we've all experienced the show's ordinary but true-to-life themes at one point or another. 
(Source: NIS America)

**Height:** 151.6 cm

[Official Website](https://www.takagakiayahi.com/) | [Music Ray'n profile](https://musicrayn.com/takagaki_ayahi) | [Official Blog](https://ameblo.jp/takagakiayahi-blog/)

Ayahi Takagaki graduated from a Tokyo music college majoring in operatic singing. Her professionally trained operatic voice can be heard in songs like "Life", "Inori" or "Justice".

One of the members of Seiyuu Group, [Sphere](https://anilist.co/staff/103636).

**Non-anime roles:**
- Aloy - Genshin Impact

Follows the daily experiences of high school boys.
 
Note: Chapter count include 106 main chapters + 4 extras, and 26 chapters of the side story Joshikousei wa Ijou + 2 extras

Tadakuni no Imouto