The tale of Monster Soul takes place in Elfenland, which is inhabited by both humans and monsters. The main characters are a group of monsters called the Black Airs. The Black Airs is recorded as the strongest group of the monster forces in the great war between the humans and monsters.

The story takes place in a fictional world full of monsters and adventurers called Monster Hunters, who, as their name implies, hunts these monsters. The plot revolves around a young Monster Hunter, Shiki, whom was taken in as an apprentice to a Monster Hunter named Gurelli as a child. A few years after Gurelli's death, which was due to a gunpowder incident, he comes back to his master's residence, Akamaaya Town, to join the guild there. In that guild, he meets a girl called Irie and after a series of events, he finds that she is the daughter of his master. From this point onwards, they form a party to find the legendary Miogaruna, which was Gurelli's life-long ambition.

From: Easy Going Scans

Mahiro is the prince of the Mismarca Kingdom, he won't study nor learn sword skills, he is a lazy prince who only plays until late night. His Imperial Bodyguard Pariel would always scold him for his behaviour. And towards that Mismarca Kingdom an elite squad from the Demonic Kingdom Granmarsenal is aproaching. The Leader of the squad is Lunas, a warrior princess, the third Princess of Granmarsenal. All of Mismarca's vassals voiced their will to fight and bring all-out war, although there is a man who said cowardly "Why don't we have a talk with them?". What kind of fate awaits the Mismarca Kingdom and its useless Prince, Mahiro?

From Wingtip Cafe:

In Edo (ancient Japan), an oiran (high-class courtesan) joined a robber gang that stole from the rich and gave to the poor. Together, they battled against the enemy who used ‘Eleki’ (electric gadgetry and dolls) as weapons.

From Adachi's Universe:
We start with our main protagonist, Shichimi, bidding farewell as he readies for his journey into Edo (on our Earth, Edo was the old name of Tokyo before it became the capital of Japan). His mother has just died, only leaving him a walnut and a request for him to go to his half-siblings. Shichimi bids farewell to a sternly old man, who is a firefighter. We can tell this from the symbol on his cloak. This symbol is also on Shichimi's cloak. Upon reaching the town of Edo, Shichimi meets a mysterious man, who ridicules the peace of the world as an illusion.

From Storm in Heaven:

1)You Blossom in the Summer
Shinobu grew up in a town so small that he didn't even have any classmates in elementary school. Without any friends his age, he spent his time learning about flowers with a local horticulture expert. Now that he's moved away to a city, he still sticks to himself, since he never really learned how to make friends. That is, with the exception of Yukihito, who came up to him one day and became his friend. The trouble is, now Yukihito means the world to Shinobu, and he doesn't know what to do about it.

2)The Language of Flowers

3)The Insightful Florists

4)Strawberry Concerto

5)Cafeteria Love

6)Thermidor Fireworks

From StarryHeaven:

Yuna is a special girl. Ever since she was little, she has had unbeatable luck. All the girls in her class even come to her to ask for luck with the boys they like! Although an orphan, Yuna is not sad. She still has her older brother, and together they fight through everything. But one day, Yuna meets this strange attractive boy who demands that she gives the only momento she has of her mother to him…

From Intercross:

When Akiko was a child, on the first day of the new year, a rice cake suddenly came to life and told Akiko that it will grant a wish that she has. It's always been like that year after year, until one year a cat stole the rice cake that she was supposed to eat. Her family didn't have anymore left, and stores were sold out. She tries very hard to find a rice cake, but why is this? What is her wish that she wants granted so badly?

A cute short series about friendship and magical adventures.

From StarryHeaven:
Peanut and Kyuuri are aliens who have just arrived on planet earth. Their mission? Find their missing queen! However, this is not easy considering how they have some evil menace pursuing them and the fact that they turn into cockroaches and can’t turn back without kissing a human male! They also have a lot to learn about the new planet they’re on, so it’s a bit difficult when they have to fight evil…

There are only four chapters that were ever published in this series, as Naoko dropped this project due to Kodansha losing her original manuscript.

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From Tokyopop:
Misha has just moved in next door to Kotarou Higuchi and swears she will protect him at all costs. Unfortunately, she's not too familiar with the ordinary world, as she is an angel who has lived in Heaven until recently. She has no idea how things work on earth and ends up causing more trouble.

Lakate is a man with the face of a wolf due to a curse. While traveling to find a cure for his state and the reincarnation of a woman who helped him long ago, he meets a lost young girl, Kukaru. This is where his real travel begins...

Ruca, trapped under a rock, is saved by a man dragging a large sword along the ground. Coming from Brazil to Niigata, she offers him a drink from a pokan juice. Why does he drag this large sword and how does the earth turning into a vast desert land relate to him?

On Earth, pouring boiling water over a bowl of instant Ramen means you're hungry. On Planet Cup-Ramen, the women are human sized and the men are three-inch tall. Instant sized men need to be brought up to human size by, you guessed it, pouring hot water on them! It's also a proposal of marriage. Sumire - a lively 16 year old boy, was only hungry when he bought this peculiar looking cup Ramen from the shop. Little did he know that it was actually the space ship of the pint size Prince Kanmen of the Planet Cup-Ramen! Prince Kanmen is very persistent; and Sumire who is caught in between various fiancées, older brothers, younger brothers, obsessive SM handmaidens and pop stars, he may just end up marrying Prince Kanmen out of sheer exhaustion!

4-koma manga

One day, an un-named ordinary high school girl (her name is left to your imagination), meets Cheko, a maid sent forth from a village of maids. Cheko the maid can melt, fly, remove her head and violate physics.

Surrounding the "ordinary high school girl" and her strange little maid are yuki-onna's who hate cold, a cute squid that can speak, moe yankees, tsundere maid assasins, ecchi lesbian teachers, trap yuki-otoko's, gentlemanly yakuza and many more.

From Tokyopop:

Having been assigned by the human elders the mission of stopping a mystical plague that has afflicted the Youkai with madness, Genjyo Sanzo assembles his team of Youkai warriors, desperately hoping that the disease will not affect them. He sets up qualifying tests that will help him determine the loyalty and worth of Cho Hakkai, Son Goku and Sha Gojyo. The team then journeys west to rid the land of madness.

The continuation of Slayers Revolution. After the defeat of Zanaffar, Lina, Gourry, Zelgadis, Amelia, and Pocota, the prince of Taforasia, continue their hunt for Rezo’s urn, each with their own motivations for doing so. Pocota to revive his people from Rezo’s well-intentioned sleeping spell, and Zelgadis to regain his former body. However, something deeper is circling around the intrigue behind Rezo’s urn, and all will come to a head in the bustling city of Vezendi...

From StarryHeaven:
Onda Miku was just a regular high school girl who loves nails. But suddenly, she got into a terrible accident, and the shinigami (death god) Sei fastened his chain of death onto her wrist! Sei may be hot, but he is a bit scary. Being tied together with him, just what kind of fate awaits Miku!?

The demon queen subdued enormous and powerful monsters and slaughtered over half of the world's population. Surviving members of the human race elected a hero to slay the demon queen, beseeching release from her oppressive rule. However, he questions his mission to eradicate the monsters: in his opinion, they too are conscious and alive, and so he anguishes over that fact. Sheila the Demon Queen became interested in him and joined his journey, hiding her identity and with the plan to kill him after she has gained his trust. Eventually, she realizes that she fell in love with the hero, and hence their journey begins...