With a noticeable tan and bleached hair, Momo Adachi is a high school student who is frequently misunderstood by her classmates. She's accused of being a playgirl and is the subject of many rumors, most of which originate from her ‘best friend' Sae who is jealous of Momo due to them having a crush on the same boy. Momo's life only gets worse when Kairi Okayasu, who she once saved from drowning, decides to make her his own. Kairi coming into Momo's life only encourages Sae to spread more rumors about Momo and Kairi while going after Toji herself, creating quite a complicated situation for everyone involved.
Nana K. is a hopeless romantic who is co-dependent on everyone around her and falls in love at first sight with any and all men, even married ones; Nana O. is a wannabe rock star who has had to break up with the love of her life so that she can find her own path as a singer. As Nana K. boards a train to Tokyo, she longs to finally be with her beloved boyfriend Shouji; as Nana O. boards the same train to Tokyo, she plans to live her dream with only the guitar on her back. The two meet by chance both on the train and in the city - ultimately choosing to live together - and though they are opposites in every way the girls quickly become close friends. Together, Nana and Nana will learn the bittersweet truth about love, loss, and the growth that comes because of it.
Very similar life problems are seen in Peach Girl and Nana concerning friendships and romance. The series revolve around female characters and their struggle with their emotions and trying to understand their own feelings.
Ouran High School is a prestigious private academy where money and status count for everything. Haruhi Fujioka is a scholarship student at the elite school, and is appalled by the lazy attitude of the rich and powerful students towards their studies. The Host Club is a clear example of this: a group of six attractive and wealthy boys spend their time entertaining the female pupils for a profit. When Haruhi accidentally breaks a ¥8,000,000 vase belonging to the club, they force her to work off her debt as one of the club's members; and to do so, she must masquerade as a boy! Can Haruhi keep her gender a secret from the club's exclusive clients?
Both Peach Girl and Ouran deal with a high school-type relationship. There is also a love triangle in each of them, although Peach Girl seems more focused on which guy she will choose, while in Ouran the heroine does not even know that the guys like her.
Since both series are by the same author, someone who appreciates the art style and character design of either will be happy to find that both are consistently well-drawn.
Second, both series deal with a female protagonist struggling not only to find love, but to overcome her insecurities. In Peach Girl, the heroine deals with with being tall and tanned in a world where short and pale is beautiful. In Papillon, she struggles with constant comparison to her popular twin sister.
There is also a similar story-line with the love interests. The initial guy somehow finds himself dating the cruel girl closest to our protagonist while the second fellow makes us laugh and turns out to be far smarter than even we would have guessed.
Yukari Hayasaka is a serious student who is held to high expectations by her overbearing mother. Excelling at her studies used to be her life's focus until one day she meets a group of fashion students who decide Yukari would be the perfect model for their latest design. While Yukari resists at first, she slowly comes to love this group of people who are living a life so different from her own. She also develops feelings for the lead designer, George Koizumi, and becomes close friends with Miwako Sakurada, her boyfriend Arashi Nagase, and Daisuke "Isabella" Yamamoto. Having these new friends in her life inspires Yukari to stop living her life the way her mother wants; so she strikes out on her own instead, determined to find what will make her happy.
In Peach Girl and Paradise Kiss both girls have to learn how to make their own decisions in what they want to do. There is also a love-triangle between guys although it is more apparent in Peach Girl.
Early in both Snow Drop and Peach Girl, there are young men who steal kisses from the main girl and a lot of tension over who she should date and why. While reading Peach Girl, I remembered the "kiss thief" scene in Snow Drop, and they've been bound together in my mind ever since. ^_^