Yume no Shiro is a one volume work by Masami Tsuda and consists of 3 short stories, that were drawn while Kare Kano was still running.
It's all about love couples. Also, there is a thread running through all three stories. That's a magician who helps the people. Who are the people he helps?

1) Inside the Forest
Sana loves the forest and is friends with the animals. However she is a noble's daughter that has been recently requested to be a concubine for a king due to the death of his previous concubine. Unwilling, she becomes his concubine, however she seems to have fallen in love, but he only loves his dead wife...

2) I'm a Mermaid
The island priestess discovers a golden-hair, blue eyed man that seems to be an enemy. However both fall in love...

3) The Castle of Dreams
Lord Lafense has enough of his life and decided to commit suicide by jumping off the castle wall, but it seems that his faithful servant Chita is dragged along with him. However, when they woke up, they found freedom in a dream-like castle. Are they really in the afterlife as they thought or is it something more..magical?

A nightmare-devouring tapir becomes stuck in Akane's dreams until she can feed him a proper nightmare.

Compilation of short stories:

1. Rabu. Sutori Ichi Musu (Love stream)

2. Wandering

3. Tomadoi
A mangaka falls in love at first sight with his new assistant editor. The mangaka's assistant who was a classmate of the assistant editor tries to be their cupid...

4. Fighting Love 20 Years

5. Fighting Love 2000

6. Refrain

7. Drifting and Whirling
Hero regularly dates with a younger and rich office worker for money! But soon, he can't keep such an unfaithful relationship...

8. The Miracle of Christmas
A homosexual college student who is working at a convenience store falls in love with his colleague, a heterosexual and gamblesome high school graduate. Hero keeps pretending to be a good friend but soon he can't anymore because the colleague finds a girlfriend. Then another colleague, a very fat boy who has a steady girlfriend tries to play cupid...

Extra

From FCTranslations: Azuki, a young girl whose father is the president of an entertainment corporation, is always out of luck when it comes to dating. It seems like every boy she had dated before all tried to use her as a bridge to get into the world of media. So when Azuki met the guy of her dreams, who also happened to be a contestant in the audition her father set up, she wasn't so sure what to do anymore. *Contains in the 4th volume, Juliet Club: An idol in a famous group tries to escape from his fans by studying in the library. There, he meets a girl who he mistakes as one of his fans and tries to send her away. It turns out that the girl actually doesn't know that he is an idol. They continue to study together in the library, neither of them knowing the other's name, while love slowly blooms between them... *Also another story titled We, the Demon, and Christmas Every year at the time of Christmas, the demon appears, and the Angel twins intend to catch him.

Coming in an omnibus form, it's a side story of Toribako House! The words you longed for, the many things you held dear, everything and everyone, right here!! A girl who has no luck with guys, a weak-spirited otaku boy, a natural lady-killer, a middle-aged couple, a distant relationship -- everyone keeps looking for happiness!?

Stories from the Oniyuri Hot Spring, a no-name hot spring which slowly starts to gain fame as more women come to visit.

Interlinked stories.

1-4. Bukiyou na Bokura no Sukima
5-8. Sweet Crazy Days

Sugiyama Rika is the Chief of Public Moral in her school and dislikes the school's student body President Jinguuji Kasui. She thinks he's incompetent and an expert at lying. One day a rumor broke out about a myth about love in their old school building, suddenly Rika finds herself entangled in the love myth with none other than... Jinguuji Kasui?!

Gi Yuh is the leader of the strongest gang in his high school. He lives together with his younger sister, who seems to love him.
When saving the beautiful Ha Na from a truck he instead gets injured and lies in coma for two weeks. During these two weeks he dives into a strange dreamworld and after his recovery he is not the same anymore. He regularly dreams about what seems to be a past him. To find out what happened to him he asked his teacher for help, who has friends, who deal with fortunetelling and supernatural powers. Here he finds the answer to his strange condition: He is supposed to be a "higher ghost", who takes the position of a dead or soon-dying person.

From Cireus-Anime website:

Tina Tia Lilu is a helpful and sweet girl from Wind Up Village on Wind Up Island. When she and her friends find a boy inside a waterfall, Tina discovers that the "mysterious traveler" is not like her.

But strange things are happening around her. Dr. Weirdlaff and his cronies are up to something, and Tina tries to understand her strange feelings toward the boy who came down from the rainbow as an adventure she never expected unfolds.

Ookawa Chitose is moving to a different school but there she meets an old friend who is a teacher there now. As their relationship grows they learn that it can be hard to sustain a relationship between a Teacher and student.

The story takes place in Meiji Era where Omegas were mistreated and despised for having their heat period.

Maya an Omega, with an unusual color for a hair captivated an elite Alpha named Seiji.

Story 1: Suou Hatasu is a nice guy with a pretty normal life. Like most college students, he's living alone in a little shoebox apartment and commutes on-foot. In spite of his financial limitations, he's fairly satified with his life: he's got a good friend, a cute girlfriend and is just starting his first student-teaching job at an area high school.

Things only seem to be getting better for him when one of his students, handsome and fabulously wealthy Harashima Daichi, seems to take a shine to him. Immediately feeling welcomed to his new school, Suou couldn't really ask for more. Until his new "buddy" Harashima suddenly turns on him in a deserted hallway and vows to make Suou "his property".

Can money really buy love? Harashima certainly seems to think so...

Story 2: Three childhood friends, Yoshito, Sei and Daisuke, come to a crossroads in their relationship when Yoshito announces he's getting married. Sei's composure crumbles and he admits to having loved Yoshito since Middle School. But while Sei's been chasing after Yoshito, he's been too preoccupied to notice that Daisuke's been chasing after him. (by Doki Doki)

"I won't let him get away with this, that horrible man!" After reading an article that slanders her best friend Sarah, Carrie bursts into an independent newspaper publishing corporation to complain. There she finds a man with gray eyes so handsome, he takes Carrie's breath away. The man seems indifferent to Carrie's anger and, rather than attend to her complaint, teases her. Despite their constant arguing, a special relationship forms between them, but Carrie's painful past means she is too afraid to love again. But they both can't pretend not to notice their passionate love for each other burning within...

1-3 & 7) The Scent of Temptation
Shina works part-time at a café as well as a flower shop. Most days a Kanae, a salaryman and the brother of the flower shop owner, comes to have his coffee at the shop. One day a man is with him, and Shina realizes from watching their interaction that Kanae must be gay, which comes as quite a shock.

4) When I Grow Up
When Tokiwa-san met Hiroto, he took to him because he looked so much like his dead lover. They become friends, but is that all Hiroto is to him, a substitute? And what role does Satoru, Hiroto's "friend with benefits," play in all of this?

5-6) The Fields in Which We Live
Takamori took in Nagisa when he was hurt, but that wasn't the end of Nagisa's troubles. His boyfriend abuses him, and Takamori just found a gay porn video featuring Nagisa. Takamori isn't gay, but he worries about Nagisa and can't get him out of his head.

From Chibi Manga:

There are storms for my love with Sensei!?

Miwa wants to get romantically involved with him, but cannot. Soon she finds herself attracted to his father. A dangerous triangular love affair goes on.

1) Barbed Wire Love
With the blessing of the wedding bells, Heiji has to bury his feeling to give wishes to Kou senpai and his sister. The love Heiji and Kou had during high school was so pure and innocent until Kou requested a break up. After they met again, everything went wild. The bridegroom and the brother-in-law scandalous meeting in the resting room, what will become of them?

2) I Really Want to See You
When Haru's best friend Takakazu suddenly confesses and pushes him down, Haru is powerless to fight back, but manages to escapes before the end. But a month of being alone has Haru longing for Takakazu's gentle company...

3) Sheltering from the Rain
One rainy night super popular high school student Itsumi Shuu suddenly sees geeky student Takai Suguru without his glasses, and is captivated by the strikingly beautiful Takai. With the help of an aphrodisiac Itsumi captures Takai's body, but what about his heart?

4) Love Level @Beginner
Hairstylist Matsuri and make-up artist Kouta have a dream of opening up a salon together, and have been very close up to now. But now a handsome model is aiming for Matsuri, and Kouta is discovering feelings he never knew he had!

5) Please Whisper in Your Voice
Mizumoto is president of the student morals committee and is always chasing after Honma the constant rule breaker with the golden voice. And although he acts tough and distant, Mizumoto is also drawn in by Honma's beautiful voice.

6) Other Days
Continuation of Please Whisper.

1. Hada no Ue no Renai Jijou (Above Skin Love Circumstances)
Yamaji is a middle-aged, middle school art teacher who is dating Tsukishima, a younger man. Tsukishima possesses a perfect body type, which Yamaji loves to sketch. Reflecting on that perfection, Yamaji realizes his own body is less than perfect - flabby! - and he needs to improve it before Tsukishima rejects him because of it.

2. Zaiaku wa Hada no Ue ni (Sin Is Above Skin Level)
Tsukishima, a regular businessman, has begun a blissful life living with his lover Yamaji. But though things are happy on the surface, Tsukishima can't shake the feeling that Yamaji only likes his body...

3. Hada no Ue ni Furu Hana (The Flowers Touch)
Tsukishima and Yamaji admire the cherry blossoms together. While looking at the beautiful trees, Tsukishima thinks that Yamaji is far more beautiful. A springtime continuation with our lovely couple.

4. Renai Tsuu (Heartache)
When stoic Mizusawa, a janitor, saves businessman Aoki from falling down some stairs, he gets a friend for life! Aoki is always tracking him down at lunch time just so they can eat together. But Mizusawa isn't sure how he feels about Aoki...

5. Renai Tsuu - Akka

6. Yurusareta Uta (Permitted Song)
Humans keep monsters as slaves for fighting and protection, but there is one, Zai who refuses to fight. Zai is special since he can use magic by creating spells with his songs, but he refuses to sing too... will he, for his master?

7. Omake
Three pages about the characters from Yurusareta Uta.