She does everything to ruin Momo's life. Her fair features (pale skin, brown hair) serve as a contrast for Momo; her "innocent" appearance belies her scheming, manipulative nature. She is the one who spreads malicious gossip about her - Something Momo knows, but has trouble dealing with, as people are more apt to believe in Sae than the 'airheaded ganguro girl'. She often uses the gossip to make people dislike Momo, as a result of her own jealousy and insecurity. One of the rumors she spreads says that she is dating Touji, and that Momo is trying to steal him from her when it is actually the other way around. She really is mean and doesn't care for Momo and is neither her "real" friend. All she wants is popularity in school, a hated outcast named Momo and Touji all for herself. She will stop at nothing to complete this task. Later she dates a male model to get revenge on Momo, the nastiest scheme she has ever plotted. She basically ruins Momo's and Toji's lives. 

Peach Girl is about an average high school girl, Momo Adachi, who everyone thinks is a beach bunny / slut because of her tanned skin. The actual reason she is so tanned is because she was on the swim team and tans very easily. She likes a boy, Toji, who she heard only likes non-tanned girls. This causes her to question who she is and have low self esteem. She spends a lot of time trying to remake herself into the girl she believes he wants. However, she has a friend, Sae, who likes to go behind Momo's back and make her life terrible, mostly by trying to take Toji away from her. All the while there's another boy, Kairi, who is in love with Momo.
 
(Source: Anime News Network)

2003 Tooniverse Voice actor in Korea Rhee Yong Sin (Hangul:이용신) is a Korean voice actor.  She joined the On-Media Voice Acting Division's voice acting division in 2003.  

(Source: Wikipedia)

Born: Dallas, Texas 

Cherami Leigh Kuehn is an American voice actress who has provided voices for a number of English-language versions of Japanese anime series and video games with Funimation, Bang Zoom! Entertainment, and Studiopolis. Some of her major roles are: Sae Kashiwagi in Peach Girl, Cecily Campbell in The Sacred Blacksmith, Tamaki Kawazoe in Bamboo Blade, Patty Thompson in Soul Eater, Lucy Heartfilia in Fairy Tail, Asuna Yuuki in Sword Art Online, Iris Heart from the Hyperdimension Neptunia series, and Sailor Venus in the Viz Media dub of Sailor Moon.

On screen, she played a young LeAnn Rimes in the television special Holiday in Your Heart and Kim in Fast Food Nation. In 2014, she had the lead role in Shane Dawson's movie Not Cool, which he developed for the reality competition television series The Chair.

[Eldoblaje](https://www.eldoblaje.com/datos/FichaActorDoblaje.asp?id=25779)

It's not easy being beautiful. The envy, the jealousy, the vicious rumors spread by your best friend. That's life for young Momo. While everyone thinks that Momo is a wild party girl, the reality is that she is shy and lonely. Can Momo confess her love to her classmate, Toji, or will her best friend Sae steal him away. It's a bittersweet drama of growing up and fitting in that will charm readers everywhere. (Source: Tokyopop) 
Volumes 1-8: Peach Girl; Peach Girl Authentic (2nd English Edition) 
Volumes 9-18: Peach Girl - Change of Heart

Kairi and Momo are attending university together and are finally happy...but Sae has been left behind after failing her last year of high school--she should've attended class a bit more! Follow Sae's adventures as she reunites with a childhood love and deals with high school life once again. (Source: Tokyopop)

Momo and Kairi are at the peak of their relationship, but still not married?! The pressure is on! Sae can’t stand to see this couple happy, and she won’t stand for it! Touji also seems to already have a shadow hanging in his past after becoming an adult … What happened? Get ready for this love train to move full-steam ahead once again!
 
(Source: Kodansha USA)