A manga consisting of a 9 chapter story with 3 side stories.

Shinju no Kusari (Chain of Pearls)
The beautiful, genuine pearls we lust after belong in a chain... because that is how they bind our hearts. Hisa, the newest manager of her high school's soccer club, has a secret: a part-time job. If anyone knew, she would either have to quit the job she needs to survive or the sport that she loves. Sakyou, one of the team's most talented and anti-social members, finds out about Hisa's secret... so it's a good thing for Hisa that the handsome and high-handed Sakyou wants to keep her close to him! Or is it? (There is an additional one-shot of this story in Vol. 1 of LoveSupreme Principle)

A "Girlfriend" with Substance
(scanlated as The Fruit Called Grapefruit)
Minami Kanan's debut work. Sachi was so determined to become Takanori's girlfriend that there was no way he could say "no." Literally, no way. She's the girlfriend he was forced to have, and he treats her as such. They go out together, but it seems obvious that Takanori hates every moment of it. When Sachi finally has enough of his unaffected attitude, will it make Takanori happy to be alone again?

Unconditional Love Formula
Tachibana Kouya is a whiz kid, while Ayumi barely passed the entrance exams. They're at opposite ends of the spectrum, but Ayumi is determined to win Kouya's love by having him tutor her -- then, when she passes the physics exam, she's going to confess. Why would Kouya want to tutor such a poor student, though? Ayumi's love rival discovers that Ayumi had to bribe Kouya to do it, and so she feels no remorse when she ruthlessly foils our heroine's efforts to succeed in physics and love...!

The Rumored Natori-kun
High school freshman Ai just found out that the stranger she fell in love with at first sight is the notorious Natori-kun, who goes to her school and is rumored to ditch every girl he agrees to date. That doesn't discourage Ai, though, because he's been nothing but nice to her so far. What will it take to become Natori's girlfriend, or is Ai doomed to become just another rumor?

Teti joins the Cirque Arachne, a troupe of acrobats, and finds herself captivated by one member in particular...

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, and a confession from another upperclassmen only serves to make this "love game" even crazier.

Includes the one-shots: "Tsukinami Rose" and "Princess Ship". (NOT scanlated)

From YumeDream:
Shinobu is a figure skater who loves ice-skating. First of the 2 stories of the volume is about the growing feelings Shinobu has for her new, young, and total bishie of a trainer. The last story of the volume is about a love triangle among childhood friends.

From Anime Waves:
Tsukasa, Tajima, Katsu, and newcomer Sae, were all members of the Hentai ShonenDai (Perverted Boy's club) at the tender age of 11. But as they grow older, how will each of their lives change? Will they grow apart, or stay true to the (perverted) passions they shared as kids. D-ASH is a story about the adventures these boys will have trying to grow up as fast as they can, being as naughty as possible all the while.

Golf.. A sport where the prizes are really large. Meet Tadamichi Aoba also called Dandoh. A normal kid who's still in elementary school, he also really likes baseball. But because of a clash with his principal over golf, Dandoh switches to golf when he hears that he can earn about 30 million yen if he can win a tournament. When he was young, Dandoh lost his mother due to money problems. This is why Dandoh really wants to play golf, so he can bring his mother back. Under the guidance of a famous ex golfer, Dandoh aims for one thing !! To master golf and win a championship so that he can bring his mother back !!

At a judo tournament, Akutsu falls in love with Murakami. While jogging, they crashed into each other and Akutsu got hurt (not really, he had a nosebleed due to dirty thoughts). In order to tend to his "wounds" Murakami took him home...

Features Akutsu from Seito Kaichou ni Chuukoku

From Midnight Scans:

The high-school second grader Nao secretly likes Rin, who is in the same basketball club. She didn't want to destroy the "friend" relation, and couldn't convey her feelings; but, one day, Rin falls in love at first sight?! Moreover, the person is a beautiful senior, Michiyo. And a junior, Kouta, is approaching Nao--?!

Gambling. Mahjong. Death. These are the themes of this fast-paced, undercover-agent-style manga where outrageous life-or-death gambles are made daily occurences and insurmountable odds are overcome. The most hardcore, action-packed mahjong manga you will ever see.

Included in the manga is a oneshot called Nana-chan Scrambles.

From xkazemg:

Ootome Hime’s father was a jockey who dreamed of winning the Japanese Derby. One year, when Hime went to watch him race in the Derby, he died in a horrible racing accident. The man responsible retired in guilt from being a jockey.

10 years later, Hime is in high school, and she has heard that Arakawa Jin, the son of the man who killed her father, is debuting in the Derby as a jockey. She went to see him race, and was outraged to see him win! Now Hime has decided to quit high school and go to a special school for jockeys, in hopes of being able to beat Jin in a race one day. She has met a new friend and aspiring jockey along the way, a boy called Tadano Ryouhei, but she can’t let him stand in the way of her revenge!

Welcome to the world of baseball. Where there's an abundance of attractive athletic young men.

The story is about a professional baseball team and the interaction of the members. Drama and comedy abound the different couples.

When 10-year-old Kaneda Shota was involved in a car accident that claimed the life of his father, it changed the course of his life forever. Even though his mother got a job and tried her best to support her son, money was always tight. Now, unable to afford college, Shota works a part-time job, in addition to his full-time job at his uncle's factory. He dreams of one day saving enough money to go to college. He lives alone, on the second floor of one of his uncle's warehouses, and doesn't have any friends. Everywhere he goes, he rides a bicycle, with headphones to block out the flashback-inducing sounds of the cars.

His quiet way of life is about to be interrupted. Due to pressures from the economy, Shota's job at his uncle's factory is going to be cut to half-time/half-pay for a while. In addition, Shota's uncle has agreed to lend the first floor of Shota's warehouse to a college club. This club is building a solar car to enter in a race, and they're hoping to get Shota to lend them his mechanical expertise. Will Yazaki Junko and the other club members be able to handle Shota's anger and bitterness, and draw him out of his self-imposed isolation?

From Chibi Manga: "That was the highest fever I never had. Because of those guys." When I entered in high school I met the team of “tsubasa ga oka D.C” Those guy were so problematic but looked like Host! That’s what I thought at the beginning… “…bet with us Alice, bet with us!” “I’m going to ridicule you guys!” “Let’s make a deal. If I lose, you’ll have my first kiss” If it’s Takeru-kun, I can bet anything. I can give him every “first things” of my life.

SERIES 7: Steel Ball Run
It's the seventh instalment of the JoJo saga and takes place in the wild west in 1890 (about the same time period as the first arc of JoJo).

From: MAL The story of a boxer who's been undefeated for nearly 10 years and has thus earned himself the nickname, "Zero."

The story is about how and why a guy goes from a worker at a dead-end job to becoming a boxer.

From Viz:
All that matters to 15-year-old Nobara Sumiyoshi is volleyball--she's an awesome player with big-time ambitions. But sometimes it seems like a girl just can't get a break in the competitive world of high school volleyball.
Nobara's family wants her to inherit the role of "young mistress," serving rich patrons at her family's old-fashioned Japanese restaurant. No thanks! When Nobara transfers to Crimson Field High School, known for its top-notch volleyball team, it turns out that her mother will stoop to dirty tricks to keep her off the court. With assistance from her feisty Aunt Momoko, who's got some connections at Crimson Field, Nobara decides to start playing offense.

From Easy Going Scans:

Leesu came from a poor family but he didn't mind at all not having any money or status. Being the school's strongest fighter made him feel as if he was on top of the world in his eyes. But alas, a car accident made him lose what was most precious to him; His ability to fight! Craving for his past glorious days he turns to fencing with the hope to regain what he once had?

High schooler Torii plans to get the girl, even if she is his teacher. The teacher plans to grow up and leave behind her basketball-playing youth. In basketball, planning and strategy can win the game, but is that also true for real life?

From Shogakukan: Ping pong. Table tennis. Fast, furious. You might have seen it, even played it, but you've never seen it like this! The action centers around "Smile" Tsukimoto and "Peco" Hoshino, two high school students in the midst of adolescence and out to prove they've got what it takes in the cool, cruel world of sports. This manga even got adapted into a live-action movie.