Info from here (and there's lot more info about the two volumes there):

This is a collection of manga short stories done by Takeuchi Naoko, from her debut in 1986 through her first work after the completion of Sailor Moon in 1997.

V.1
• Gradation 1: Tamaki - Peppermint
• Gradation 2: Saura - Sunset
• Gradation 3: Mizuki - Moonglow
• Gomen ne Wednesday (Sorry Wednesday)
• Liner Notes

V.2
• Rain Kiss
• Yumemiru Rainy Button
• Secret na Kataomoi
• Love Call
• Yume ja nai no ne

A collection of oneshots by Asatsuki Mai.

1. Prism Heart
2. Teen's Road
3. Hot White Kiss
4. 17 Year Old

From Citrus Ego:
Marino ran away from home, for her aunt tried to make her marry a strange man. She had lost her parent eleven years before. As she left home uncertain where to go, she traced back in memory, and she arrived at a men's dormitory.

From Manhua-Revolution:
Marino, a 15 year old girl runs away from home due to an arranged marriage, finds her self in a male dormitory by accident, there she meets...

1) Princess Recipe (Ohime-sama no Reshipi)
Makoto lives alone until two strange boys from the world of games appear before her! One is a knight, and the other is a wizard. And just like in the game, Makoto becomes the "princess"! In order to save Princess Makoto from the wicked wizard, the cool knight Nanase begins living with her!?

2) The Fallen Angel (Tenshi Tsuiraku)
This is a secret: Heaven is a company, and angels are its employees! Hashiba is just a beginning angel in the death department, so she spends most of her time on earth. She's very excited when she receives her first assignment--until it turns out that the soul she's supposed to take to heaven is that of Toujou-kun, a human boy who's always been nice to her. She doesn't want him to die... Is this the beginning of an angel falling?

3) Moonlight The Shine of Love (Tsuki no Hikari, Koi no Kagayaki)
A tremendous force pulls moon fairy Kouya down to earth, but when she finds the boy responsible, he claims he did nothing to draw her to him and tells her to go home. But Kouya is literally stuck to Takimoto Sui and can't go home as long as he has a wish to see something and it remains not granted. What is the wish that lonely Sui is keeping locked inside, that was so powerful it reached as far as the moon?

4) Program in Love (Koi Suru Program)
Year 2487, Kirika is 16 years old, and it's high time she got married. Not exactly enamored with the idea, she runs away from her wealthy home, only to land herself in bigger trouble with a group of hoodlums! And the only one who can save her is...walking away!? Konoe is a mercenary with a sci-fi secret who'll only help Kirika for money! (So it's a good thing Kirika has some.) She purchases him for three days, but when Konoe goes above and beyond the call of duty, Kirika gets in the mood to...*cough*...install his hardware in her system!

5) A Love Fragrant with Kisses (Kisu de Kaoru Koi)
Hikari wants to know all there is to know about kissing, and she wants her teacher to teach her! She has a million different wishes, so it's a lucky thing that she stumbles upon a magic lamp! But what's wrong with the genie Izumi? He's so unenthusiastic, and kind of a jerk. He tricks her out of her wishes until she's down to just one. What will it be...?

If you plant your yard full of red spider lilies, you can deceive spirits into believing it to be one of the many roads to the afterlife, and perhaps, meet the deceased dear to you...

Transylvania Rose is a bored angel who descends to Earth to clean a few souls. When she witnesses a depressed undertaker slitting his wrists, Rose rips off one of her wings and gives it to the undertaker, trapping them both somewhere between heaven and hell--and life and death!

Girly boy Pil-Hyun Jung, also called Teddy Boy, strives to become a real man to win the heart of the girl he likes. He needs help becoming more manly so he becomes an apprentice to the author of a manhwa series about a pretty boy who wants to be a man. As Pil-Hyun works to overcome his problem, his love interest likes someone else, he gains a crazy stalker girl, and the women he lives with are all scary in one way or another. Will life ever go the way he wants it?

All I wanted is an ordinary life with everything being ordinary. That is all I wanted. But thanks to my dad (a lovely gangster), I don't get to live an ordinary life. So all I wanted is ONE thing.
I wanted to be like other girls my age and have a normal school life.
But what should I do when I get a fiance who is gorgeous and has a dirty personalty?!

From Shoujo Manga Maniac: Himeno Ruri is Vice President of the School Council at Seiou Academy! Recently, at a council meeting, a strange matter has come up: "P", the mysterious thief for hire. Who is he, and why does he only steal particular items? Originally included in this manga is a oneshot called Baby It's You: Because of her beauty and status as a school idol, Akami is somewhat forced to take part in a school play. Only problem Akami has is that, the role she's suppose to do is a ''male'' role and she isn't experienced in acting at ALL.

[Modified from Pipe Dream Holidays (formerly Kyuumu Scanlations)]:

This is a volume containing three short stories ("Legend of Purusateia", "My Most Important Thing!" & "Angel's Love Song"). They're all really cute and have happy cute endings so if you like cute shoujo, this is something you might want to read.

From Shoujo Crusade:
Miki always loves to be the first in everything. She now aims to be the Seiryou Miss of the school Christmas party. She plans to confess to the school's prince, Suga-senpai, when she's chosen and be his first girlfriend. However, her guy friend, Yuuma, who has always supported her, opposes her this time. Why?

Oneshot was published in Saikyou Help xxx

Jin Ah enters the mirrored land and is unable to leave. An adventure awaits her as she attempts to escape from this new world.

Sahara is a normal high-school girl whose life is turned upside down when she meets "Gertrude," a 100-year-old demon who looks like a teenaged boy. Gertrude is a man-made demon, constructed from the parts of various other demons and brought to life through a "recipe" from an ancient spellbook.

From Yen Press:

This book contains three separate and unusual stories set in alternate realities. The first story, “How Martians Conquer the Earth,” tells the tale of a young woman struggling with the sudden death of the man she loves. Can anyone ever replace him? The second tale, “Is It Really Impossible?,” makes you wonder if a man and a woman can truly be just friends, especially in a world where women are such a rare find. And the last of the three, “Science Fiction Story,” is a sad tale about a girl who hates robots and the humanoid who serves her. The creator, who believes that the best privilege artists get is to ”lie,” creates a whole new world beyond your imagination.

Featuring Mayu, who's looking for a rich man to bring her happiness, and Ritsuko, who can't turn down an ex-boyfriend, Ready, Go! is a collection of short stories focusing on the adult side of love.

From CMX:
Sakuya and Wakyo are reincarnated and reunited only to discover that Bishu-sama - their master and mentor from a past existence - is in their midst and in grave danger from vengeful demons! Still unsure of their own powers and the nature of their cunning and elusive enemy, they must race against time to rescue Bishu from the dark forces that roil within his reincarnated form.

The Goblin King has kept a watchful eye on Toby: His minions secretly guiding and protecting the child... Legions of goblins work behind the scenes to ensure that Toby has whatever his heart desires... Preparing him for the day when he will return to the Labyrinth and take his rightful place beside Jareth as the heir to the Goblin Kingdom... That day has come... But no one has told Toby.

From Seven Seas:

Tales of love abound in Wonderland, especially where Alice is concerned. Whether it?s the March Hare, the Clockmaker, Gray Ringmarc, or Blood Dupre, Alice has many admirers and she just can?t make up her mind who she likes best.

This anthology chronicles the many loves of Alice Liddell, and also features a story about the love between a prince and a maid in Crimson Empire, and the love between an assassin and a princess in Arabians Lost.

Although Jyun's family forced her to marry Setsuna, she came to love him. Now a married high school girl, Jyun tries her best to be a good wife. However, Setsuna doesn't seem to like her at all!