SAOTOME Nanno is a first-year high school girl living an ordinary life with her close friends Maki and Yuusuke. Although she dreams of having a boyfriend, she doesn't have a one, because she is wary of boys after one broke her heart in 6th grade.
One day at school, she encounters a very handsome boy who makes her heart beat fast. He is surprised to see Nanno and soon starts teasing her. He even asks her if she is already in love with him. The way he is talking is familiar to her. He uses the same lines as those in a 70's style-manga that Nanno's friend, Maki, reads. But that's not the only reason....this boy is none other than the one who broke her heart years before, Tsusuki-kun!
Nanno is angry and humiliated when she finds out his real identity while he made fun of her as he knew from who she was from the start. He already has a jealous girlfriend.
Nanno will never like him again even if he still makes her heart pound...but what if someone confesses to Nanno!? A new love comedy begins.
(Source: JShoujo)

Nono, a 15-year-old, dislikes flirty men because of previous experience, so she wants to date a serious, honest guy. When Akkun, a 25-year-old, confesses to her, it's like a dream come true. But does he really love her?

(Source: Shoujo Sense Scanlations)

One day, while in search for more food, our heroine stumbles upon a jar of what looked like umeboshi; little did she know that it would bring her more than just a full stomach. The mysterious snack somehow makes her shrink and she can only grow back when she eats something (which is a bit of a chore if you're THAT tiny). And if that's not troublesome enough, she's also dealing with her crush who seems to like her best friend!?
(Source: Shoujo Crusade)

Not every girl has the misfortune to see the boy she likes confess to the most beautiful girl on the tennis team--or the luck to see him get rejected! Unfortunately for Kazusa, her beloved Kurosaki has absolutely no interest in dating her even after he's been turned down, a confession from another upperclassmen only serves to make this "love game" even crazier.

For the sake of medical treatment for her younger sister, Natsume ending up moving from her home to Shikoku. In a place where no one knows her, she'll make her high school debut as a "cool beauty"! ...This determined Natsume is approached by the wild child-like Yudai saying, "enter my team"??Eeh!!? What do you mean by team!!?
(Source: Shoujo Crusade)

From Shoujo Crusade & Chibi Manga:
Anzu currently works part-time at a beach house however when it comes to serving male customers, she can't help but be cold and shy. When she accidentally spills a drink on one of them, a male co-worker saves her who ends up being her childhood friend Rei. Anzu is happy to reconnect with Rei, however, Rei might be after a bit more...?

Fateful Encounters:

Minoru is Riko's first boyfriend and first love, but to Minoru, Riko is his second girlfriend. Even worse, it seems that Minoru still cares an awful lot about his ex, whose sister actually goes to the same school as Riko and Minoru. Then one day the pretty boy of the school, Sakashita, shows he's interested in Riko by kissing her on the lips! Can things get any more complicated?

"I'm in love with him but... he's in love with her." How will this complicated love end?
(Source: MangaUpdates)

I kissed the friend I had a fight with during the countdown party!?

(Source: Chibi Manga)

Rikako has always been jealous of her childhood friend Tsubasa as he not only he is popular, he is smart and is much prettier than her, much to her dismay. Rikako wants to go in a different high school so that she can be separated from him, but no matter how hard she tries, he is always there for her. Despite of her jealousy, the more he does something for her, the more she appreciates their friendship. But can Rikako be independent from her friend, or will something else happen?

Kogure is a normal high-school girl who loves shoujo manga and food. She wants to fall in love, however there is one big problem - she's terrified of real guys. Then, one day, she runs into her ideal guy, and he's real!

(Source: CoyoMoose)