Sachi Umino is the sister of the male main character [Nagi Umino](https://anilist.co/character/166730/Nagi-Umino).

Mixed up with another family's child as a baby, high school student Umino Nagi is finally meeting his biological parents. On the day of their meeting, he happens to encounter Amano Erika, a high school student at a prestigious and wealthy girls school. At her request, he's half-forced into pretending to be her boyfriend so she can avoid marrying her fiance....However, not only were they the babies who had been mixed up, they're also engaged to each other! The loving parents of both families officially recognize their engagement, and the couple begins living together. Nagi is in love with his classmate Segawa Hiro, and Erika is determined to rebel against her father, so the couple agree not to get involved with each other. The mixed-up and chaotic romantic comedy starts now! 
 
(Source: Crunchyroll)
 
 Note: The final two episodes were broadcast together as a one hour special

__Height:__ 159 cm
__Agency:__ Office Osawa 

[Profile](http://osawa-inc.co.jp/women/koharakonomi/) | [Instagram](https://www.instagram.com/konomi_kohara0628/) | [YouTube](https://www.youtube.com/channel/UC-mDMYpO-cIimTdXreTQdpA) | [Twitter](https://twitter.com/koharakonomiyt) | [Wiki (en)](https://en.wikipedia.org/wiki/Konomi_Kohara) | [Wiki (jp)](https://ja.wikipedia.org/wiki/%E5%B0%8F%E5%8E%9F%E5%A5%BD%E7%BE%8E) | [TikTok](https://www.tiktok.com/@koharakonomiyt)

She is a voice actress affiliated with Office Osawa.

**Non-anime roles:**
- [Mona](https://anilist.co/character/209678/Megistus-Mona) - Genshin Impact (VG)
- [Arona](https://anilist.co/character/302229/Arona) - Blue Archive (VG)
- Soda - Goddess of Victory: Nikke (VG)
- Roccia - Wuthering Waves (VG)

[Twitter](https://twitter.com/BrynApprill)

Bryn Apprill is an American voice actress affiliated with Funimation

[Instagram](https://www.instagram.com/gigipatta/)

[Instagram](https://www.instagram.com/estefaniaa_piedra/)

Estefanía Piedra Almaraz is a Mexican voice actress.

16-year-old super-studier Nagi Umino, second-year student at the Meguro River Academy high school, was switched at birth. On his way to a dinner to meet his birth parents, he accidentally meets the brash, outspoken, Erika Amano, who is determined to make Nagi her fake boyfriend as she never wants to actually marry. But once Nagi makes it to dinner, he finds his parents have decided to resolve the hospital switch by conveniently having him marry the daughter his birth parents raised...who turns out to be none other than Erika herself!
 
(Source: Kodansha USA)
 
Note: Fourteenth place of Tsugimanga 2020 Award in the Manga Category

The second season of Kakkou no Iinazuke.

The story of a boy meeting his real parents for the first time and a girl trying to escape an arranged marriage.


Mini animations featuring the characters from Kakkou no Iinazuke anime posted on the KADOKAWA Anime YouTube channel and the official Cuckoo Anime Twitter account.