Peach Girl: Sae's Story

Peach Girl: Sae's Story (裏 ピーチガール) is a shōjo manga series by Miwa Ueda. It is a sequel to Peach Girl, told from the point of view of Sae, the antagonist of Peach Girl. It was published in Japan by Kodansha in Bessatsu Friend from 2004 to 2006 and collected in three tankōbon volumes. It is licensed in North America by Tokyopop.

Story
Sae is left back a year in school, for skipping classes despite her good grades. She is stubborn, so she hangs out at Momo and Kairi's university daily despite needing to attend high school. Sae meets one of her childhood sweethearts, Kanji (or Monkey Boy), who left for Malaysia when they were young, and promised to marry Sae when he returned. In love with Sae, Kanji follows her around trying to win Sae back over, very unsuccessfully. He also takes care of Sae's dog, Sora, when her parents would no longer let her keep it. Sae later purposely injures the dog in order to keep it away. Sae starts modeling and pretends she goes to college with Momo, when she is really still in high school. She meets Honda and works for CC as a model where she meets a college model named Takuma who she uses to keep away Kanji. Another model is in love with him though and despite her efforts to win him over his indecisive nature causes them to break up. Later, she meets another boy named Shinji in an accident where she knocks Kanji and his bike into his car and offers to pay damages. She works hard in odd jobs to pay him with Kanji's help, even though she claims that her modeling should cover it all. In the end it turns out he is just using her and his selfish nature is revealed when, in danger, he chooses to save his car over saving Sae. All Sae's ups and downs makes her realize that Momo, Kairi, and Kanji are the only people that actually care for her.

There is also a section in volume 1 which retells half of Peach Girl's plot from Sae's point of view where we learn that Sae is quite insecure and feels that friends and boyfriends do not come easy to her like they do others, which is partly the reason for why she is the way she is.