From Tasty Kiwi Scans:

HyoYi is a poor girl with a scholarship to one of the most exclusive private schools, attended only by kids from the richest families. Strong and resilient, HyoYi fights to protect her mentally handicapped brother whose disability makes him a target for bullies and beatings. Then she meets MinHa, who unexpectedly winds up making an agreement to protect the siblings. Bound together by their unusual arrangement, HyoYi and MinHa gradually learn what it means to love, one step at a time....

From Shinnen:
Recently, An's boyfriend, Kurosawa, has been acting strangely. Did he just cancel their date for Sunday? It turns out that he's helping his best friend, Kouta, who is in love with this other girl. But does he have to do this in spite of An's feelings!?

Includes other short stories: Onaji Sora no Shita, Niji no Ame, Scratch Go-go

Hang-Ah is a girl who can forsee the future through dreams. Along with Nabi, Hang-Ah goes on a journey in order to break the seal of the four gods.

At the dawn of the 17th century, at the end of the era of civil wars, in a world of chaos, the epic Battle of Sekigahara was joined.
One man emerged from the largest battle ever fought on Japanese soil; a terrible warrior of unspeakable power, he was nicknamed 'the unconquerable.'
Kyoshiro is a peaceful medicine peddler who harbors the soul of an assassin. He accompanies a young bounty hunter across Japan in search of a murderer and on a quest to discover the terrible secret of his own identity.

Hinata Saotome is suddenly asked out by En Shinohara, a gorgeous boy in her grade. What she doesn’t know, though, is that his hobby is cross-dressing! En has always hated men, and whenever he sees his own reflection, he punches out whatever is doing the reflecting (windows, mirrors…). To combat this hatred, he dresses up as a girl. Hinata decides to go out with him anyway, despite his weird hobby.

Also included are the following unrelated short stories:

• Sweets Honey (V.08)
Serizawa gets sick whenever she smells something sweet, but she likes a boy named Miura who has an extremely sweet tooth.

• Boy's Lily (V.16)
A spin-off of Usotsuki Lily where En is a normal guy who recently started dating Hinata whose hobby is dressing like a guy.

• Amber (V.17)
Mio Hasekura is a helpful high school girl who is very fond of her late father who died when she was younger, and hopes to find a guy like him someday. On her way to school one day, she comes across a man collapsed on the side of the road and Mio helps him out.

Misako's father remarried a week ago and her step brother turns out to be the school's most popular guy, Aizawa Hiroki. Giving the appearance of a gentleman it turns out he's a huge playboy, trying to "capture" her to prove they can't be a family!?

Includes two oneshots "Kimi Fechi" and "Kanzen Date Manual". The former has yet to be scanlated.

Kyosuke Kosaka, a normal seventeen-year-old high-school student, hasn't gotten along with his younger sister, Kirino, in years. For longer than he can remember, Kirino has ignored his comings and goings and looked at him with spurning eyes. It seemed as if the relationship between Kyosuke and his sister, now fourteen, would continue this way forever. One day, however, Kyosuke finds a DVD case of a magical girl anime entitled Hoshikuzu Witch Meruru (Stardust Witch Meruru), which had fallen into the entranceway of his house. To Kyosuke's surprise, inside the case, an adult video game entitled Imoto to Koishi yo! (Love with Little Sister!) is hidden.

Usui Fuuko is ridiculed by her classmates as 'ugly' after unsuccessfully confessing her love to Amahara Haruhiko. With the failure still in her mind, she swears to lose weight and to get revenge by making Amahara fall in love with her! However, after a series of event, Usui is beginning to have second thoughts about her plan...

Ichiru Kanzaki is given an offer he can't refuse: to clear his entire debt, he has to enroll in the high school where his father works to track down his father's illegitimate daughter, his own younger half-sister, whom he has never met. But which girl is she?

Amano Rintarou has taken care of Nakatsugawa Maki since they were kids. He knows his childhood friend Maki isn't the brightest crayon in the box but in spite of that, or maybe because of that, he still has always thought he would be taking care of him now and in the future. However, when they enter university together and Rintarou is made to move in with Maki, Maki goes from being a regular idiot to being a perverted idiot! But only towards Rintarou?! What's Rintarou going to do?! How will he deal with this new side of Maki? Will he be able to still live with him and continue to take care of Maki now and forever?

From Intercross:
Yamada Nadeshiko has always had a negative personality, so she always thinks that whatever she does, it will lead to the worst possible outcome. But by meeting Samejima-kun, with his conceptualization, she finds that she can slowly become more positive.
Then Nadeshiko realises that she has fallen for Samejima. What is she supposed to do now!?

Futagami Sousuke, 14 years old, is a normal student, wishing to live a normal life. But everything changes the day he sees a doppelganger of himself in his house.
Since then, the girl he has a crush on, Amane, will introduce him to another side of his world he had no idea about, and it won't be anymore the dear peaceful days for Futagami.

Tamano Kako and Marunouchi Gaku were the best of friends, but Gaku had to leave with his father to travel the world. However, Gaku promised that if Kako waited, he would come back in 10 years and they would go out. However, right after Gaku left the law of Takkoku was created: If you confess your love to someone, you must beat them at a game of ping pong; if you touch each other before the game, that person will be punished. If you win, regardless of the other person's feelings, you automatically go out. However, Kako is called the best ping pong player in Japan and Gaku has never played ping pong before AND he wants to be the one that confesses. How will these two people's love flourish under these conditions? Will Gaku ever be able beat Kako at ping pong?

N/A

Eita enters high school aiming for the National University School of Medicine. Because of his parents' divorce--and his goal--he shuns anything to do with romance or love. One day Masuzu, the school beauty with the silver hair, who's just returned to the country, enters his life in a most unexpected way. Chiwa, his childhood friend since elementary school, will not let this go without a fight.

Collection of oneshots.

1-3. Honjitsu no Goyoumei wa?

4. Koi wa Amai ka, Shoppai ka (Is Love Sweet or Salty?)
An optimistic guy and a sullen intelligent man. In order to save the store this mismatched couple comes together!? The love story of two childhood friends.

5. Houkago ni Kiss

6. Honjitsu no Goyoumei wa? - Honjitsu no Otodoke Mono desu

Introvert Subaru is assistant to an eccentric witch in school. After drinking a beast potion, he suddenly changes in personality and becomes more assertive to the person he likes.

From Viz:
Phoenix is made up 12 complex stories linked by the presence of the mythical bird, an immortal guardian of the universal life force. Read in order, the separate stories jump across time, alternating between a distant future and a distant past, converging on the present, with characters from one story being reincarnated in another. The 12 stories--over 3000 pages.

Dawn:
The first volume, originally serialized in 1967. This story takes place in 240-270 AD, in the era of Queen Himiko of the Yamataikoku. Using her army, led by feudal general Sarutahiko, to invade Japan, she seeks the Phoenix and eternal youth.

Future:
The second volume, originally serialized in 1967-68. In Phoenix's chronology, this is the final story; it takes place near the end of mankind. In 3404 AD, the world has become super-modernized, but humanity has reached its peak and shows decline. A young man named Masato Yamanobe is living with his girlfriend, Tamami, a shapeshifting alien. Pursued by Masato's boss, Rock, they eventually take shelter at the isolated base of mad scientist Dr. Saruta, who attempts to preserve life on Earth with the assistance of his robot, Robita. Eventually, nuclear war breaks out.

Yamato:
The third volume, originally serialized in 1968-69. This story takes place in 320-350 AD (Kofun period), and is based on the Yamato-takeru-no-mikoto legend. The decadent king of Yamato is trying to have his own version of Japan's history written. Meanwhile, a "barbarian" tribe, the Kumaso, is writing an unbiased history. The king of Yamato sends his youngest son, Oguna, to murder the barbarian chief, Takeru. On his journey, Oguna encounters the Phoenix.

Universe:
The fourth volume, originally serialized in 1969; also known as Space. The story takes place in 2577 AD, where four astronauts must escape their ruined spaceship in escape pods. The survivors eventually crash into a mysterious planet. Among them is Saruta, who contends with Makimura for the heart of their female companion, Nana. On this strange planet, they eventually meet the Phoenix.

Hō-ō:
The fifth volume, originally serialized in 1969-1970. The story occurs in 720-752 AD. (the period in which the Daibutsu of Todaiji was built), during the Nara period. One-eyed and one-armed young man Gao, an ancestor of Saruta, turns into a murderous bandit when he is rejected by his village. He attacks a sculptor, Akanemaru, and the two men's paths diverge, but their fates remain linked. Akanemaru becomes obsessed with the Phoenix to the point that he loses sight of his original dreams, while Gao eventually finds a state of grace despite his continuing hardships. Ho-ō is widely considered the masterpiece of the Phoenix series. This became the basis of a Famicom game, in which Gao is the playable character.

Resurrection:
The sixth volume, originally serialized in 1970-1971. The story takes place in 2482-3344 AD. In an age of robotics, technology and science, young Leon dies in a car accident. He is returned to life by scientific surgery, but his now mostly-artificial brain makes him see living things -- including humans -- as distorted clay figures, while he sees machines and robots as beauties. Leon falls in love with a worker robot, Chihiro, whom he sees as a beautiful girl, and will fight for this forbidden love. He will also find out the secret behind his accident. A side plot features the robot Robita, who previously appeared in Future.

Robe of Feathers:
Serialized in COM, 1971. Published in English by Viz as an appendix to the second volume of Civil War (Turbulent Times). Based on the story of the Hagoromo.

Nostalgia:
Published in COM, 1971; continued in Manga Shōnen, 1976-1978. A science fiction epic about the rise & fall of civilization on the deceptively named desert planet of Eden & one boy's universe-spanning search for the planet of his ancestors: Earth. Features numerous cameos from other Science-fiction based Phoenix stories, including the shape-shifting alien "Moopies" first seen in Future, Makimura from Universe & an early model Chihiro Robot from Resurrection.

Turbulent Times:
Published in Manga Shōnen, 1978-1980. The story is about a woodcutter named Benta and his childhood sweetheart, Obu, who are separated and caught up in the events of the Genpei War. Various historical figures, such as Taira no Kiyomori, appear as major and minor characters. The character of Gao (from Ho-ō) appears as a 400-year-old hermit.

The Viz (English) edition is entitled Civil War and is split into two volumes, with Robe of Feathers included as an appendix to the second volume.

Life:
Published in Manga Shōnen, 1980. A TV producer who attempts to procure human clones to use in a The Most Dangerous Game-style reality TV program learns the error of his ways when he is mistaken for a clone himself. This episode is notable for only featuring the Phoenix in flashbacks and also for introducing her half-human daughter who does not appear again after this episode.

Strange Beings:
Published in Manga Shōnen, 1981. The story of a female samurai who is imprisoned in a time-warp by the Phoenix as punishment for her sins along with her faithful retainer & forced to become a healer treating the victims of wars from all over time and space including humans, youkai and various extraterrestrials. This chapter was loosely based on the Hyakki Yakō emakimono by the famous Japanese artist Tosa Mitsunobu (although in the context of the story it's the complete reverse).

Sun:
Published in The Wild Age, 1986-1988. This is the longest story, and was the final volume completed before Tezuka's death.6 It centres around Harima, a young Korean soldier from the Baekje Kingdom whose head is replaced with that of a wolf by Tang Dynasty soldiers following the defeat of the joint Baekje-Yamato force at the Battle of Baekgang. He then escapes to Japan where he becomes the feudal lord Inukami and becomes caught in the middle of the Jinshin War, as well as joining a greater battle between supernatural forces and time-travelling to a bleak future world ruled by a theocracy that claim to have captured the Phoenix. This chapter stands in stark contrast to the earlier historical Phoenix stories, which tended to de-mythologize the mythical characters therein, for instance in Dawn, many Shinto gods are portrayed as mere humans. In this chapter, however, various Youkai, Oni, Tengu and other mythical creatures are shown fighting against Bodhisattva.

Early Works:
Covers the prototype version of the series from the 1950s.

From Viz:

It seems like 15-year-old Kazuya Hasukawa's life can't get much worse. Not only did his older brother marry Kazuya's first love, he brought his bride home to live with the family! Leaving his own home, Kazuya enters an exclusive all-male boarding school, Ryokuto Academy. Unfortunately, a prestigious education is little compensation for getting stuck with the cross-dressing roommate from Hell...

Note: There are more volumes in the original Japanese publication compared to the Viz release because Viz has excluded unrelated one-shots that do not involve the Greenwood characters.

Love Roma is a story of love at first sight - literally. When Hoshino sees Negishi for the first time, he asks her to be his girlfriend. Shocked, Negishi nevertheless agrees to allow Hoshino to walk her home, where he explains why he is in love with her. Touched, Negishi begins to feel something for this strange young boy from her school.