Seito Shokun follows the life of Kitashiro Naoko, nicknamed Nakki, as she plows through life with her friends and family. Faced with hardships and struggle, happiness, sadness, love and tragedy... Nakki paces forth! A manga classic!

Won the 2nd Kodansha Manga Award for Shoujo in 1978.

From Shoujo Manga Maniac:

Lin is an average high school girl who has a huge crush on Daiwen, a popular TV host. Super Pop singer Gonjieh, who is Daiwen's enemy, transferred 6 months ago to Mushroom College. Phoebe and Jia are Lin's best friends and luckily end up in the same class. Unfortunately for them, Lienze, the no.1 delinquent in her school and who scares the living daylights out of Lin, also happens to be in her class. To make things worse, Lin's uncle appears, who she says is the root of all trouble. How will Lin survive?

From Entropy:
A manhwa one-shot about a girl who is unsure if she should continue the relationship with her longtime lover with a flirtatious past. Should she trust him this time or not? Could he ever change his ways?

From Shoujo Sense:

The seven seconds we fell in love, the fifteen minutes we spent holding hands while going home, and the two weeks we spent together. They're all my lifelong memories. How will this limited time love develop...?

A oneshot by NisiOisin and Miyokawa Masaru:

Sunaki is a back-up player on the baseball team. One day, he finally gets the courage to put a love letter into the school idol's shoe locker, but where will his actions take him?

(The title is a play on words: 変身願望! (Henshin Ganbou!), or Desire for Change!, vs 返信願望! (Henshin Ganbou!), or Desire for a Reply!)

Oneshot from NisiOisin and Kawada Yuuya:

A boy suddenly wakes up to find out he's in the body of a high School girl. Who is she and how did he switch bodies?

From CoyoMoose:

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!

When a Man Loves a Man series:

1) When a Man Loves a Man (1 Volume)
Story of several guys working in host clubs.
Professional rivalry, mistaken identities, unrequited love, and jealousy test Shinkawa's and Takaaki's friendship on a semi-regular basis. But when Iwaki Kyousuke, Takaaki's old flame and mentor, returns to seduce Shinkawa away to a new host club, will Takaaki be able to persuade Shinkawa to stay, or will his devotion to Iwaki cause him to lose Shinkawa's partnership?

2) Last Waltz (2 Volumes)
At the end of When a Man Loves a Man, Shinkawa had rejected Iwaki's invitation to become the number one host at his new club. But now the rivalry between Schnapps and the Rusty Nail is heating up.
Schnapps has hired a new host, Ishii, who is stealing all the other hosts' clients away. What could his motive be? Is Shinkawa right in suspecting that Ishii is somehow working for Iwaki? But when Shinkawa shares his suspicions with Takaaki, why is he so quick to defend Iwaki? How could he still love the guy that abandoned him to start his own club? How can Shinkawa make Takaaki look at him the way he looks at Iwaki?

3) Nightcap (1 Volume)
Flashback showing how Takaaki and Iwaki met and then why the cruel Iwaki abandoned the kid after let him become bisex.
Iwaki has been a gigolo for 8 years. When he meets Kato, a homeless kid sleeping against his car on the streets, his fancy is struck. When he finds that Kato is looking to become a gigolo, he gives him money to help him clean up to get the job, just because he's interested. Will he lose his love for women in exchange for his love for Kato?

4) Irokoi (3 Volumes)
Follows the star-crossed love relationships of four hosts, Takaaki, Iwaki, Shinkawa and Kenzaki. Interesting story and well-developed characters, but you should probably read the preceeding three When a Man Loves a Man series to understand the backstory.

5) U:V (2 Volumes)
The final arc of the series on the four hosts and their relationship. Iwaki introduced his nephew, Ozaki Kazuomi, to both Takaaki and Shinkawa; Takaaki is to train Kazuomi before being passed over to Shinkawa. However, Shinkawa still has doubts about Takaaki's feelings for Iwaki; has Takaaki really put his feelings for Iwaki behind him? What about Kenzaki, who has such love and passion for Shinkawa that he's willing to do anything for him?

Akari is an unfashionable first-year high school student who just moved from the countryside to the big city. While taking pictures of "Nana-chan," a huge mannequin at the mall, Akari accidentally bumps into a handsome boy who compliments her on her eyes. Little does she know that the boy who has taken a fascination with her is actually Kanda, an extremely fashionable model and the heartthrob at her new school! What happens when he decides to make Akari stylish enough to land on the front cover of a magazine?

Angelica North has lost her parents in a fire accident. She blames herself for their deaths, and this has driven her to darkness. Sylph Rave is an 'occult writer' who is rumored to see ghosts. These two strange, rumored characters are driven by fate to meet. How will Sylph help Angelica? What other mysterious things will haunt our troubled heroine?

Mr. Sakaki and Ms. Ousaka investigate the case of the serial scribbler!

From Paradise Love Scanlations:

Although they're brothers.Their appearance, personality are completely the contrary!!
Suddenly one day, these two completely different brothers switched souls!? After possessing his cute, girly little brother's body, the hard days of the tough big brother begins.

1) Teach Me More by SHINJO Mayu On her way home from school, Hina is attacked by a pervert on the train! She's too embarrassed to raise her voice, but - she's saved by Kyousuke!? Kyousuke is the hottest guy around, and there's not a single girl who doesn't want him. He pulls Hina off the train, and then... he does more things to Hina than the pervert on the train would have! (Also included in Motto Oshiete) 2-4) Chase 4Me by IBUKI Kaede Hana's mother and father died when she was five, and ten years later it's her four incredibly over-protective and super-possessive brothers who take care of her. Today, she's beginning her first day of high school at an all girls school... but when she accidentally walks into the all boys school next door, she's assaulted by males! Then Hana falls in love at first sight with the boy who saves her - Ren - and begs him to take her on a date. Ren can can rescue Hana from the boys in his school... but is he any match for Hana's brothers? 5) The Frontline of Summer! A First Date Victory-or-Defeat Charge by FUJIWARA Natsu Megumi is 16 years old. Today is her first date with her crush, Satou-kun, and... the extra-long title says it all about this extra-short story! 6) Radical Love Revolution by SARA Mahiro Riko and Kippei have been friends since they were kids. They're so close that they beat up bullies together, and now they've handcuffed themselves to each other! They've always looked for excuses to fight... but now Riko is looking for an excuse to love. So the question becomes: can Kippei survive the romantic advances of a girl who expresses herself through violence? 7) The Desires of My Right Hand, the Beating of My Heart by AYUKAWA Mio Touko is a mild-mannered high school girl with an unspoken crush on Kuga-kun... until her friend hypnotizes her, and Touko's right hand takes on a perverted mind of its own! It gropes Kuga-kun, and Touko no longer has any control over it...!? 8) Sepia-colored Secret Room by HARUSHIRO Amami Third grader Chiko's friends were constantly being bullied by Rei-kun, a boy who glared at them with beautiful sepia-colored eyes, because he didn't want anyone hanging around Chiko but him. They took revenge on him by locking him in a haunted house, and Chiko never saw him again... Seven years later, the new transfer student from America is... Rei!? He's become rich and is twice as sadistic as before, and he's got a score to settle with Chiko's friends - and Chiko herself.

Sae, a young lady of a wealthy family, sometimes can't control herself and gets the urge to behave in a manner unbefitting of her upbringing. It's her butler's job to intervene.

This is the original Niconico Seiga version of "Domino Kick - Naraberareta Domino o Kick Shitara Dou Naru no Kashira?" (I wonder what would happen if I kicked a line of dominoes). As opposed to the Gangan Online version, it doesn't have the subtitle and has a partially different set of chapters.

A story about Kawai-san taking music classes to be together with the senpai she loves. The problem is that her life is made unbearable by the sullen and strict drummer Ichibashi-san.

Another installment featuring Kawai-san and Ichibashi-san

Collection of stories:

1-2. 16-sai, Shinkon Hajimemashita
Getting married at16th birthday? Swayed by the husband's unreasoning love?
When she was six, Sou-chan promised Wakaba that he would marry her when she turns 16. Ten years later, does Sou-chan still remember the promise he made? Can Wakaba be honest with her own feelings?
What will happen when Sou-chan's father's company goes bankrupt?

3. Akuma no Yuuwaku ni, Amaku Torokeru
Matsutani Mika wants to protect the pastry shop her father left her but lately no customer visits her shop. Can Katsuya help her?

4. Idol-sama wa Watashi ni Muchuu?!
An aspiring idol group 'Infinity three' and its manager are working hard to reach the top position when a scandal happens. Will the team break up?

5. (Sokuhou) Class no Ikemen ga Watashi no Kamikyoku ni Muchuu na Ken
Ichika lhas a passion for making Vocalo songs, but is just too shy to ask people to listen to them. One day she goes to her classroom to find the popular Iori-kun crying to her music?

Hassaku’s grandfather loved and collected beautiful things. After his grandfather passed away, wandering painter Hassaku inherited his grandfather’s house. The house is supposed to be empty, but instead it is inhabited by two beautiful siblings, Soyogo, an erotic novelist, and his younger sister, who is his model. Until his grandfather's funeral service is over, Hassaku will have to live with the eccentric pair...

Note: The main story has been completely scanlated, but the last 2 chapters - unrelated oneshots - have not.

From Tasty Kiwi Scans:

Komugi, a wealthy young woman, who loves delicious food, decided to become a chef at the Italian restaurant L'aurora. She was hired on the condition that she would live by supporting herself and on a low pay. But what will become of her, when every single day she's being tormented by the skilled, but sharp-tongued top chef Tetsuri, poverty, and, more than anything, hunger...!?

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From MangaHelpers:

Yonekura Komugi is a young woman from a rich family, who thinks one of the happiest moments of life is when you eat something truly delicious. She dreams of being a chef at the Italian restaurant L'aurora, a place that held special significance for her grandmother. Unfortunately, she sabotages herself by making a terrible first impression on the prickly L'aurora top chef, Tetsuri. Join Komugi as joins the staff at L'aurora and works her way to becoming a chef that can share the joy of delicious food with others! [tethysdust]