The story follows Yuko Kawai, a junior highschool student, as she faces the challenges of growing up and overcoming her shyness as she comes of age. She begins seeing her best friend Hiroshi Naganuma, the boy next door, in a different light. (from Wikipedia)

Each volume is a separate story about a different boy becoming a female idol. ^w^

[1st story]
Akira is a cute jr. high school boy who has a great singing voice that his sister is always raving about. She thinks his voice sounds like an angel's and in a truly sister-like fashion, she plots to get her younger brother into a dress and wig so she can see him look like an angel while he sings too ^_^ So at home one day after school, she gets Akira to sing karaoke, and then dresses him up in a frilly dress and a wig of long hair!

[2nd story]
Nearby, a talent scout hears a beautiful clear voice. He follows the sound and can hear Akira's singing coming out of Akira's house. He is thrilled to see the voice belongs to the girl in the cute dress. But Akira tears the wig off and insists that he is a boy. After a moment of thought, the talent scout begs to recruit Akira to be the next new FEMALE idol singing sensation! Akira refuses at first, but finally relents when he realizes he may get the chance to meet Ruri, a currently popular female idol singer. And thus "Mizuki" is born, the angelic new GIRL idol singer! Watch the fun as Akira attempts to be a female idol, and is surrounded by girls who like him or hate him in his various identities!

[3rd story]
Tachibana Yuzuki is a young 11 year old with the face of a girl. Everyday his older brothers tease and play pranks on him usually on his appearance. Yuzuki has one dream in mind and that's to become a famous idol so he can escape his village life. After he told his female friend, Chiyoko, about it she feel something that makes her not want Yuzuki to go. What could it be? Right before he sends in his audition form to Tokyo, his brothers play one last trick before Yuzuki sends in the form and goes to Tokyo. They change his gender from male to female! How will Yuzuki be able to fix this prank that's gone too far?!?!

A series of 5 oneshots:

? Crescendo
Kazune, Yuzuru and Yanna loved the band "Crescent" and were inseperable. Then Yanna reveals she loves Yuzuru and Kazune cheers her on. Kazune discovers her family is moving away. And Yuzuru calls Kazune to ask if she'd like to go with him to a "Crescent" concert...

? Mousou reijou
A rich girl named Nene has esp. The only way to counteract the ilusions she creates is to touch the person she loves.

? Kokoro Prism/Heart Prism
Haircut, makeup and contact lenses. The new me. Nami uses her day off from cram school to go to the beach as a different person. Her classmates don't recognize her. Beach bums try to pick her up. She's saved by a mysterious boy named Yoh who says, "Don't I know you from somewhere...?"

? Link - Kimi no Tenohira
Miyuu was devastated when she saw her boyfriend kiss another girl. When she slaps her hands against the mirror in her room, it changes scene and she's staring into the face of a strange boy...

? Synchronized Night
Like the other girls in her class Remu relies on her dreams to predict her future. Her latest dream predicts success in love--and classmate Mamoru blurts out he had the same dream! In eerie succession his dreams match hers. But then her dreams have her pursued by a dark figure. Is it Mamoru? Does he have the same dream?

Each volume depicts different heroine.
Volume 1: Tachibana Tsubomi
Volume 2: Kusakabe Tsubomi
Volume 3: Shiina Tsubomi
Volume 4: Katanashi Tsubomi
Volume 5: Aizaki Tsubomi
Volume 6: Nike Tsubomi
Volume 7: Yagi Tsubomi
Volume 8: Honda Tsubomi

Maachi is a 15 year old girl who loves her brother Riichi. Actually, the two of them are not related by blood, but due to their parents work situation they are forced to live alone together. Riichi, who's looks, personality and grades are top-class, is the idol around school. But he has a huge secret, that only Maachi knows about. Riichi is actually an otaku!!
(Source: Hanashi Scans)

[From ShoujoMagic]:

Story 1) Chiko's Wish -
Chiko is a young female sparrow in love with a human boy named Shuu. One day, the Grim Reaper suddenly shows up at Shuu's house and shocks Chiko by announcing that he's come to collect Shuu's soul. What can one little sparrow do to save a human life...?

Story 2) Crybaby Yukimushi.
Akira was always a taunted for her crying. She promised her friend Kei that she wouldn't cry anymore. Now they are in the seventh grade. What it Akira going to do when someone says they want to confess to her beloved Kei.

Story 3) Reverse Storm Warning.
Kotone and Naoto have been dating for a long time. Nao isn't the most famous or most popular but she likes him. Kotone was talking to her friends but they find her relationship isn't porgressing well enough compared to other's relationships. Now Kotone wonders why Nao is even going out with her and why he's acting differently.

Story 4) The Rainbow Fugue.
There's a legend that if you see a rainbow at the waterfall in the park your love will come true. Miyabi and Hayate were great friends until they got to middle school. Then they went to seperate schools and almost never sees him. Mayabi wanted Hayate to love her so she goes to the waterfall and finds her beloved Hayate there playing a trumpet.

Story 5) Spring Game.
Izumi really wanted to play the game Chrono Spring but it was sold out. A guy tells her that he bought two copies and that she could have one. Before she knows it she's in playing the game and meets a guy named haru who saves her life and helps her get out the game.

Story 6) Half Bitter Gift.
Yukumi absloutly hates Kookie but is in love with his friend Asada. Kookie likes to peaster Yukumi and Yukumi's friend aya is always quiet on the side supporting Yukumi. It's around Valentine's day and Yukumi and Aya are making cookies. Yukumi is making her's for Asada but Aya says shedoesn't know who to give hers to but by what Kookie says there may be a different story to all of this.

From Midnight Sonata Scans:
Airu is a clumsy and scatter brained girl. She was looking forward to a flowery middle school life, but due to her being from a 'family of witches,' she was admitted instead to Mahoraba Academy. In a strange school without any friends, the lonely Airu encounters strange people who use a special power called Maho...!? A magical school life begins!

Collection of 5 short stories by Yabuuchi Yuu.

Anzu, has a new neighbor, but this neighbor is no other than her childhood friend Ichigo. This, extremely gorgeous girl, already transfered to her school and everything, but... What's this feeling that she gives off her? Anzu seems, to have forgot something really important...

There's a jinx at Haruru's school - if a couple sees the blue train at 6 am together, they'll be together forever! But if a couple sees the blue train at 10 pm together, they'll break up!
Haruru is going out with Nagi, a boy who goes to another school, and their love is just starting to blossom. But what happens when Haruru happens to see the 6 am blue train with someone else!?

[From Ivyscan]:

Miruku gets the shock of her life when she finds a strange person in her bed one morning. Ruu claims to be an angel who has cast a spell on Miruku's family and schoolmates. In return for silence about her identity, Ruu agrees to help Miruku any way she can. One day, a student quarrels with the rest of the class. Ruu tries to put things right with a spell, but it doesn't seem to work on that student...