High-school girl Kamigaya Kai often gets confessions. She then poses a requirement "If you let me stab you to death, I'll give my love to you.". This way people don't reaproach her in her quest to live her boring life, with boring parents, boring school colleagues and boring media.
Kuwashima Kusabi, a seemingly plain girl brightens the world that is "boring" to Kamigaya Kai. It first seemed like she was the 5th confession that turned someone off, but she ran home instead to fetch a sturdier knife.

After causing the death of his parents, a young boy lives solely for the sake of his sister - avoiding contact with other people for fear of hurting them like he did his family. But one day, a mysterious stranger appears and says "I will control your life from today onwards"...

Six months ago, a scream was heard all around the world, killing a third of the human population. The story follows Sorakara Kuu—the boy who is not moved by anything, whether happy or sad; whether it's comedy or tragedy.

What would you wish for if you could make a single wish? Sakura Yamato, an anti-social genius, knows his ideal wish. When at home, as he lives alone, he spends most of his time with his little sister collection, fawning over anything little sister related. Other than them, his only other conversation companion is a stuffed rabbit memento of his long dead older sister. But one day, the rabbit starts speaking out of nowhere, and claims its feeling for Yamato won't lose to anyone else. After transforming into a woman with rabbit ears, she states she is his sister, coming from Heaven to give him a single wish from God.

The bizarre everyday life stories of the citizens of a coastal port town, Daidai.

He is the "Devil", who loves flowers. All girls feel loved when he's around. It was all the same for him until he saw a crying girl that ran into his garden. He thought she was like any other girl, but eventually, she was the prettiest flower he ever saw...

From Intercross:

1. Ikenai Hokenshitsu: The new infirmary teacher is hot, but he's kind of perverted!? He reads porn, too. A very dangerous man indeed!! Just what's going to happen to Mimi, the health committee member!?

2. Toilet no Hanao-kun

3. Dan x Boi!

4. Panic at the pool

5. Count 10!

Biological twins--and they couldn't be more different. Friendly outgoing Anzu is in love with Makoto, but can't work up the nerve to confess. Shy withdrawn Ichigo (the one with the glasses) was a stalking victim and now hates men. But they're going to need each other to cope with a huge change in their lives. Their mother has remarried and the twins discover they've gained a brother as well; clever and carefree Kenta. And Kenta (with Makoto) has a plan to help Ichigo--just make the twins trade identities!

From Mangascreener:
A tengu is an utterly proud and arrogant creature (so much that the Japanese saying, "to become a tengu," means to preen conceitedly) that is said to steal young children away from their homes. In this story, the fractured and disgraced remnants of the tengu species come together from all over the country to rise up, reclaim their pride, and rule over the nation of Japan, as is their right. What kind of effect will the "Tengu Party" have on the humans of Japan, and more importantly, what exactly makes a tengu?

Robert Cornelius is a master artisan renowned the world over as an expert in the crafting of "GEM", a brand of dolls who are humanoid in size, shape, and movement.
Before he passes away, Cornelius destroys his house and his workshop, only leaving behind, in his grandson Frants' name, a journal, a key, and an elegantly crafted GEM named "Jade".

But as Frants is soon to find out, a skilled craftsman's work is never safe from those who covet it...

"If there's such a thing as a soul, does it remain in this world as long as the bones exist? Will all of my sins and sorrows remain in this world forever?"

Tokyo, 1952. A beautiful, mysterious woman who's haunted by dark dreams claims to have murdered her ex-husband... three times. Meanwhile, a small seaside town is terrorized by a bizarre series of deaths. Four seemingly separate murders are linked by strange, unsettling dreams of bones... Is something supernatural going on, or are the real demons found in the depths of the human mind?

This complex case reunites the sleuths from Ubume no Natsu and Mouryou no Hako: onmyoudou practitioner Chuuzenji, horror novelist Sekiguchi, police inspector Kiba, psychic detective Enokizu and journalist Atsuko.

Taito has been really sleepy lately, and keeps dreaming of a female vampire who says she has given him her "poison." Sometimes he even thinks he hears her voice when he's awake. But after surviving an accident that should have killed him, Taito's world changes drastically and he realizes that his dreams are more real than he thought.

1) Like as the Time Will Come When it Will Rain
On a rainy day Ryouichi takes in a boy with no memories. As they slowly evolve a relationship will the memories the boy has break their fragile bonds?

2) An Uncertain Cycle
Tsuda has known Hitomi all his life, but they've never been close. Tsuda noticed Hitomi's split personality early on and has avoided him ever since. So why is Hitomi standing on his doorstep?

3) Changing Odds
Tsuda and Hitomi meet again.

4) Reflections in the Water
College student Hayase finds out his distant boyfriend Shou has a twin and wants to meet him. (Note: This was adapted into a movie called "Itsuka no Kimi e".)

5) Secrets and Lies
A terrible secret haunts a salaryman who suddenly reconnects with his sister's ex-boyfriend.

6) A Single Futon
Shunji figured that his brother Yuu had a girlfriend when he decided to move out, but his girlfriend is actually a boyfriend! After years of taking care of the older Yuu, can Shunji let his brother go?

7) The Curse
A man, cursed to forget the past, struggles to remember. A continuation from the first story of Natsu Jikan.

Kouta turned his back on his powers when he realized how different he was. Then one day he meets someone who loves magic.

A down-on-her-luck witch comes home for tea.

From Anime Waves:
Nakabaru Taiyo came to Okinawa in the pursuit of beautiful ladies and the blue sea... But while trying to hit on a cute girl, she told him that her mother hated him... And then a wonderful story of scuba diving, beautiful women and adventure begins!

Kibayashi Rento is a 'personification' of a supernatural being descended from a family of Ents (tree-oak people). One day his arm got torn off trying to save a cat from a tree. While he's looking for the arm, he crosses a girl, Kurashina Saya, who finds his lost arm. Saya is Rento's crush, and actually a fellow 'personification' descended from a family of Ghouls, whose main characteristic is appetite for humanoid meat. Can romance blossom between the two supernatural beings? Slight discomfort advised. Don't worry though because he's a plant, so he can regenerate his lost body parts easily, including that aforementioned arm.

From Clockwork Lies:

The girl that the protagonist is in love with was attacked by a rapist. However, the protagonist couldn't save the girl and even lost his own life in the struggle. He found himself in the hospital of hades (the other world) after his death and met a strange doctor in that place. The doctor made an offer to him. He will be given a chance to revive and return to the human world if he makes a contract with the doctor... What will he choose, and what exactly is this contract?

The manga adaptation of the otome game. The story centers around the six sadistic Sakamaki vampire brothers and a girl, Komori Yui, who goes to live with them.Yui Komori is a positive-thinking girl who nevertheless is troubled by seeing spirits and experiencing poltergeist phenomena. In her second year in high school, she transfers to a new school — a night school for entertainers and celebrities — due to her father's work. There are rumors that there are vampires among the student body, and Yui ends up living with the Sakamaki brothers.> Diabolik Lovers Prequel( http://www.batoto.net/comic/_/comics/diabolik-lovers-prequel-r10050 )