Aihara fell in love with the gentle Ikegaya and entered the same student council as him. However, his gentleness was a lie and his true domineering nature was revealed! He also has a secret power...

Sasame is a police officer who, in the eyes of other people, seems to be talking to himself all the time. However, the truth is a bit different.

From Lililicious:

Cat's Eye Hall is a mysterious shop that exists to guide lost hearts. If your heart is lost, follow a black cat and you might just end up here...

In the Nekomedou Kokoro Tan series:

V.1 - Yuri Shinjuu (A Yuri Double Suicide)
- A Yuri Double Suicide
Shiho and Hiyori think they can only be together in death. But as they're looking for a place to commit suicide, Hiyori disappears and Shiho follows a cat to a mysterious shop called the Cat's Eye Hall.
- Beautiful, Cruel Pride
- Hana ga Chittemo
- Shitataka de Ite Bukiyou na
- Kaminagahime

V.2 - Shoujo Hakumei
- Shibaru Ito
- Stella Maris
- Satou Kashi wa Yume wo Miru
- Amai Moumoku

V.3 - Renai Higan

A collection of sweet, realistic tales about the everyday lives of various cats and the people who come to associate them.

Nekomimi Smock is a short oneshot in which a 4 year old girl, who is wearing nekomimi, teaches a 17 year old hikikomori about life.

From Shoujo Sense:

What does Tamako do when she learns that her unrequited love, Nojima-senpai, likes cats…?!

Ai Nekomori can see the "doors" to people's hearts, meaning their thoughts. Therefore, he can't trust anyone and never opens his heart.. But then he meets the upbeat, tomboy Ritsu Sengoku, who says whatever she's thinking. Can she open his heart?

Shirakaba Yuki is a girl with the Catulus syndrome, which afflicts her with cat ears and a tail, plus some behavior like a cat. In the middle of her high school entrance ceremony, Ayano Riko - who is also a first year - comes in with a mountain of cats on her back. Apparently she's a cat magnet.

They become friends.

From Village Idiot:
What will happen to an ordinary human teacher who falls into a youkai school, with his only ally(?) a sexy but air-headed nekomata? A slight ecchi and heartwarming read brought to you by the author of “Sore wa Totsuzen, Unmei no Aite ga”

A short story about a cat demon and a teacher.

'I've got someone I love more now. Goodbye.' was written on the note left behind when she disappeared. It's just me and the cat now.? Yūsei dreams of succeeding as a graphic designer, but he spends his days without being able to make a difference while living in a town near the ocean. His girlfriend, Akane, left him, and he sank to rock bottom, but his cat started to unexpectedly expand his world?

From Lucia Rose:
Amane Mikiko, better known as Mikki, is an elementary school student who moves a lot and has to transfer schools often. As soon as she makes friends, she has to painfully say goodbye to them. She is determined to not make any new friends at her new school, but it doesn't exactly go her way. Especially when she meets a boy with the head of a cat! But hold on, he only looks like that in her eyes?

One day, the cat gods of a shrine that is falling out of use find a human baby left outside, all alone. They decide to take in the baby, who they name Tama, and raise her as their own. Now the little girl Tama, who knows very little about humans, is trying to grant the wishes of anyone who visits their little shrine, using the power of the cat gods!

Sakuya used to be a fearsome high rank vampire until he fell inlove with Atsumi. Now, he's fallen so low that he can't even drink other people's blood because only Atsumi's blood suits his taste. The problem is, Atsumi is not only a guy, but also a vampire hunter... Their love is more than just complicated, it's a game of life and death for them both!

Morinonaka Iyo is a shut-in (hikikomori) who refuses to go to school, choosing instead to coop herself up at home all day surfing the net and browsing online auctions. However, her homeroom teacher will stop at nothing to make her go to school...

From MangaHelpers:
One day, Son happened across a woman, named Shue, that he had loved as an older sister when they were young. It looked like it was the same woman, with the same scars, but Son had thought she was dead. In fact, she was a reanimated corpse, resurrected by a young girl named Fuu to work as her minion. Son becomes Fuu's follower, determined to find a way to return Shue's soul to her body so that she might live again. However, Son doesn't know what he's gotten into with Fuu, though, as she ends up in conflict with many other practitioners of her arts, using Shue's reanimated corpse to do things that Son would rather have never seen.

The succubus' target was a second grader!? So begins a seductive comedy with a clumsy succubus and a mature grade schooler!

From Storm in Heaven:

Chidori absolutely hates men. For her entire life, she's been forced to put up with a bunch of irresponsible, useless slackers, and she's sick of it. Can one innocent little lie change how she feels about men?

Sanako is a 10-year-old girl who lives with her father in Tokyo. Inside the gray building which is their home, they have created a sky garden full of huge, green potted plants. In this city oasis, kindhearted people meet…

Takashi is dating Chizuka and he meets Chizuka's old friend who is from England. Takashi is troubled by he and his partner's difference in social status.

From Manga Abyss :

1-2. Sleepless Butterfly
The Kinase village is being called “a village protected by god”. Kaya and Rin were raised in a village that’s surrounded by a deep forest. Although they are brother and sister they aren’t related by blood. However, they get along well despite this. Although they are living together peacefully but there is a secret kept from everyone~!?

3. Kaze ni Hana ni Kimi ni
Erika meets Ryousuke, a boy from Tokyo that had a strong passion of swimming until he injured his shoulder, forcing him to abstain from swimming. Ryousuke, having loved the sea for a really long time, becomes really sad, and has lost all hope in finding another way to live. Erika wants to help him...
- Intercross

4. Monochrome World -
Ever since a certain Christmas Day when she was little, Jun has seen the world as Black and White. Even after ten years, her eyes are still like that. She doesn't want to tell anyone about her secret because she's already been "betrayed" once by a friend. After that, they were separated. Little did she know of the suprises in store for her...

5. Alice