From In.Difference:

Yashio is a debt collector who one day ends up saving a girl called Mikumo from a car accident. Mikumo, wanting to repay his service to her, decides to help him out with his job. Yashio refuses at first and tells her to get lost, but he eventually accepts and a new combination pair is born. But these two aren't ordinary or even human; They are in fact cats from the hidden cat society!?

includes:
Kare to Kanojo no Futomin

Famous idol Jin Lingfeng is said to have it all - the looks, the smarts, and the success - that is, until it's revealed he's actually a complete idiot who managed to get a perfect zero points on his test during high school. Now he has been sent back to Green University to improve his image, under the threat of being fired if he doesn't score 90 points or above on each subsequent test. And taking on the role of his remedial studies tutor is none other than the top student on campus and a bookworm who is completely out of touch with pop culture, Lin Fan! With their stubborn personalities and well-known statuses at their university, how will their daily lives go from here?

Two siblings who were separated at a young age due to the death of their parents reunite again with many mysteries muddling their past.

One day, the diligent and chaste Sister Erna's church is attacked by vampires. The pleasure from the venom in their fangs overwhelms her body and sets her heart and her mind at odds. Thus rises the curtain on a bewitching vampire romance!!

Official Italian Translation: https://www.animeemanga.it/2019/09/12/sister-vampire/

From Huffly Parfait Scans:

Perched atop a hill with a clear view of the stars, Seigatsu High School is a boarding school specializing in astronomy. The only girl enrolled in Seigatsu High School, Yahisa Tsukiko, lived an idyllic life alongside her two childhood friends, Kanata and Suzuya.

Then one day, Tomoe Yoh arrived, transferring from France. From awkward beginnings, these four opened up to one another and grew to become irreplaceable best friends. But during the spring of their junior year, further changes have been blossoming within their relationship…

A young witch named Aria spends her winters alone, deep within an Irish forest. One day, she finds a white wolf collapsed outside her home who asks her to take care of him. As she lives with the wolf, a bittersweet yet heartfelt story unfolds.

With the author's characteristic humour and creativity, the work describes one girl’s fantasy adventure. Yvien Magnolia's beauty widens the small villagers' eyes she is living but she never knew what her future would be, since it is destined too high to imagine for her at that time.... As the lord of the manor tries to kidnap her, Yvien flees to Lowood Institution for wizardry and witchcraft she never thought to go leaving behind her family. In the school, she meets interesting people, like, January Lightsphere who shines purple aura compared to his noble but peculiar family, and Lariatte, an orthodox fighter family's heir, who will be her closest mate.

Diana Bailey, the daughter of a duke, has been told to have her engagement broken countless times since she was young. Each time, Diana would answer to Prince Robert's demands and refine her skills, but one day, he said that being with another woman makes him feel "relaxed and calm"...?!

A work published in "Though I May Be a Villainess, I'll Show You I Can Obtain Happiness! Anthology" is getting a short-term serialization due to it's popularity! A romantic love comedy that includes Prince Robert's sister, Princess Lizzy, and her fiancé Sergio is starting!

Hiyori, a high-school student with a complex about her small stature and elementary-schooler-like appearance, managed to get an injury thanks to her friends' teasing about her unrequited love. Unexpectedly, the infirmary is not only dark, but also has an underclassman, Kageyama, rather than the nurse. Even more unexpectedly, Kageyama suddenly confesses to being a vampire, having fallen for Hiyori at first sight, and asks her to be his food. How is the modest Hiyori to deal with this stubborn and addlebrained kohai?

The poor daughter of the Marquis, Teresse, who has been striving to save money day and night, was suddenly informed that she will be one of the “Prince’s Consort Candidate”.

“Being a poor aristocrat such as myself, becoming a consort candidate is impossible for me”– is how I should kindly refuse, but...

“Every candidate will be granted 100,000 peir”
“Employment as a court lady or lady attendant”

“Those generous conditions!?”

“I can be a court lady that I’ve always longed for!” Teresse thought. And with this in mind, she decided to head to the palace as a “Prince’s Consort Candidate”.

However, what awaits her in the palace is a war with self-indulgent young ladies and other consort candidates! Will Teresse be appointed as a court lady or will she stand out from the rest as the Prince’s Consort!?

Mello is a normal girl who has lived on Earth her whole life... or so she thought. It turns out she's an alien who has been living 250 light years away from her home planet. But going back means leaving her childhood friend, Ichi (an Earthling), behind...

Love Planet is a series of 6 oneshots:
- Koi Suru Wakusei
- HUG!
- Kimagure Robots
- Itooshi no Giant-sama
- HAKKA!

- BIRTHDAY SONGS 4/1
The age difference between Yuu and Mizuho is one minute. But because of this one minute Mizuho went to school a year earlier and graduated a year faster. When she’s going away to Kyoto University, will Yuu be able to tell her his feelings?

Kimiko Mihoshi and Gao-kun, the rumored class delinquent, recently became class representatives. While searching for Gao-kun to invite him to a class gathering, she stumbles across him with two nerdy guys and immediately assumes that he is bullying them. She interferes, but only to find out that the three of them are actually close friends, and the rumored delinquent is actually a really nice guy. Furthermore, he even asks Kimiko to be his girlfriend?! What will Kimiko do? Thus begins a new romantic comedy!

A heartwarming story about the daily lives of a freeter named Yuuya and his two part cat, part human pets.

Note: Nukoduke! moved to Manga-Park.com after chapter 108. マンガPark uses a different numbering system so the new chapters released on マンガPark start numbering from chapter 200 (which is equivalent to chapter 109).

We follow the daily life of a slightly capricious butler who doesn't really listen to what others tell him. It is then that he meets a high school student named Murasaki who falls in love with him.

This is the beginning of a love story between not a really obedient butler and a girl in need of love.

Whether it be for illness or injury, the doctor's medicinal bath was the glory of the Moon Flower Kingdom. During the Crown Prince's Keiun's regional inspection, right in front of Keiun's eyes, a shocking “suture surgery” was successfully completed by a young girl named Koyou!

A conspiracy flying around, suspicious beliefs, and deep-rooted traditions... Together with reassuring friends, Medical Doctor Koyou, and Crown Prince Keiun will confront various challenges and deal with their country's national disaster!

A Chinese styled imperial medicine Fantasy!

Paraphrased from Impossibility:

Kiriko has always been overshadowed by her older sister Eiko. Eiko is cute, smart, and extremely popular, unlike Kiriko. This manga is about Kiriko leaving her sister's shadow.

Eriko Ichimura spends her high school days in complete obscurity. Her sole hobby is staring at handsome, smooth-spoken Akira "Omi-kun" Ohmi, and tweeting her daily fantasies under the screenname "Lovesick Ellie." One fateful day, she accidentally bears witness to Omi-kun's true self — and if that weren't enough, he sees her mortifying Twitter, too! Follow along with a plain, perverted girl, a two-faced boy, and their curious romance! [Kodansha]

In this colourful world, I lost all of my colours.
Then the boy shining in gold arrives to change it?

Ichika started high school with a lot of expectations, but hasn't been able to make any friends because she's too shy to talk to others. One day in the school backyard, Yuuya - a known ex-delinquent, feared by all his classmates - approaches her, and for some reason invites her to go to a karaoke place with him...
A beautiful and shy girl and an ex-delinquent, two introverted and lonely souls, make plans after school to achieve their dreams: be able to make friends!