The "bittersweet, mysterious story" revolves around Chocolat Aikawa, a chocolatière who runs a shop called Chocolat Noir. She can grant wishes to the troubled people who visit her shop -- if they give her something precious in exchange.

In the Chocolat no Mahou (The Magic of Chocolate) series:

V.01 - Chocolat no Mahou
V.02 - Bittersweet
V.03 - Creamy Sugar
V.04 - Dark Spice
V.05 - Evil Essence
V.06 - Fruity Flavor
V.07 - Guilty Crunch
V.08 - Honey Blood
V.09 - Ice Shadow
V.10 - Jewel Syrup
V.11 - Knocking Egg
V.12 - Love Flake
V.13 - Melty Night
V.14 - Nutty Carnival

After the meteorite "Artemis" collapses on the moon, an unidentified phenomenon affects humans: the "Reproductive system disease". 12 years passed and mankind has done research in the field of cloning and immortality in this world where the birth rate is 0. Meanwhile, Ashiro Koshiro is still seeking the cause of this disease, and suddenly a woman appears and gives him a mysterious suitcase.

The latest work from the "My Dearest Self With Malice Aforethought" duo, a blockbuster crime suspense series that has sold over 1 million copies!

Detective Saeki Jin of the Tomizayama South Police Station receives a report of a burglary and heads for a mansion that stands tall on a mountain. However, as he proceeds with his investigation, he discovers a shocking fact. A shiver runs through the investigators...! A noir suspense of passion and lamentation, depicting a detective confronting a bloody madness, is about to begin!

College student Seiji Kitou and his friends go to an abandoned building as a test of courage, and meet an attractive woman who is a monster that swiftly kills and eats people as soon as she meets them. While trying to escape, Seiji is saved by a mysterious woman with the same ability, Kiri.

Shinichi Kudo is a high-school student who, by using observation and deduction, is good at solving mysteries. While investigating one, he is caught by the criminals that he was watching and forced to take an experimental drug. Leaving him for dead, the criminals disappear. Instead of killing him, however, the drug turns Shinichi into a little kid.
To preserve the illusion of his 'disappearance,' Shinichi adopts a new name based on his favorite author (Arthur Conan Doyle) and becomes Conan Edogawa. Ran, his (actually Shinichi's) childhood friend takes this little boy under her wing and brings him to her home.
Conan now lives at a detective agency run by Ran's father, but his mind is as keen as ever and he continues to solve mysteries... always allowing Ran's father to take all the credit.
As far as everyone's concerned, Conan is just a little kid anyway... even to Ran. This is *extremely* frustrating to Conan since nobody will listen to a 'little boy.' Despite this, Conan has a mission... to find the criminals who did this to him and get the antidote to that drug.

Note: Won the 46th Shogakukan Manga Award in the shōnen category in 2001.

It's like Jujutsu Kaisen but the MC's power is fingering the ghosts until they cum, also there are a lot of girls with big boobs.

Climax Exorcism.
It is an obscene ability that forces a someone to climax when stimulated, whether they are dead or alive, and also causes evil spirits and monsters to ascend to heaven when they cum.
Haruhisa Furuya, the boy who possesses this cursed ability to make all existence climax and expel evil spirits, is one of the lowest-ranking students in the exorcist academy
After all, if he uses his ability, he will die (socially) in many ways...
But Haruhisa has met someone, A girl named Misaki Souya, a girl with an evil eye capable of exposing people's secrets. This is the story of how those who were called the worst, and The worthless degenerates exorcists become the strongest ones in history.

Seeing it brings misfortune; defiling it brings a curse? Introducing a new era of strangeness, abandoning seriousness!

On a stormy day, a landslide destroys a fence, and siblings who ventured into a long-prohibited area encounter a terrifyingly bizarre creature...
"I'm a curse god, you know!? Don't you think anything of this grotesque form?!?"
The unflappable siblings, rather than being scared, casually call the creature "Dara-San" and grow fond of it!?

Seemingly scary but not at all! A new era of occult comedy that leaves seriousness behind.

The Abyss represent pure annihilation. They possess unmatched power and follow their nature to consume all living things. Yet, one day, a traitor emerged. A clueless young girl, Hildegard, awoke on the battlefield and realized she’s the abominable “White Night” Abyss. After breaking through countless pursuits, she was adopted and reformed by Arya’s family. She gradually strengthens her own belief and uses the body of the Abyss to save humanity. To protect the goodness and warmth in her heart. But the chaotic Abyss won’t bend to her will...

A story of a young man who lacks a sense of reality after being dumped by his lover. He was visiting a seminar on cultural anthropology with his fellow classmates when he discoveres an ancient wall painting, which transports him to the past where mammoths dominated the world.Action

"I'll become the strongest sacrifice!"

Mamoru Yamaemori, a priest detested by the people who consider him to be "cursed". However there is another side to him: he exorcises "Tengu", monsters that enter into mountains and eat people. He is not rewarded, as he is instead burdened with the fate of an untimely death. The only people he could count on for support were his younger brothers... This is a mysterious tale about hunting for "life" using "life" as bait, for the sake of subduing monstrosities.

On the way home, Jin and his friend Komachi are suddenly transported to another world full of strange creatures and Jin is killed by them, but somehow manages to come back to life, but as a tentacled creature !? This is the start of a dark tentacle fantasy!

From Kodansha:
When she was still just a girl, Kotoko was kidnapped by yokai. These spirits made her into a powerful intermediary between the spirit and human worlds, but this power came at a price: an eye and a leg. Now, years later, she watches out for dangerous yokai while developing feelings for a young man named Kuro, who is also special: an incident with a yokai has given him healing powers. He's surprised when Kotoko asks him to team up to handle renegade yokai, preserving the thin line between reality and the supernatural.

The manga centers on Yūma Fujikura, a constantly bullied first year high school student. When a classmate named Ryō Ameri, nicknamed "Amelie," helps him out one day, Yūma tells him not to get any more involved, or else the bullies will target Amelie too. In response to this, Amelie only tells Yūma that he would commit murder for him if Yūma wanted.

"You... are going to die tomorrow."

Minadzuki Satsuki, 16 years old. Apart from being antisocial and declaring the death of her classmates, she is a normal high school second-year student. Her nickname is "Liar Satsuki".

However, her eyes alone are abnormal. What she is gazing at is...

Twitter of the author : https://twitter.com/ryo_ichips

In a world entirely ruled by giants, the human race, which has turned into their food, has surrounded its residential zones with immense walls, which both prevent their freedom outside the walls and protect them from incursions. However, as a result of the appearance of supergiants who cross the wall, a desperate struggle begins and the young heroes, who have lost their parents, fight the giant as a training corps, with a view to regaining their freedom.

Note: Won the Kodansha Manga Award in the shōnen category in 2011, was nominated for the 4th annual Manga Taishō award and also for the the 16th and 18th annual Tezuka Osamu Cultural Prize.

Yaguchi, who got on board the ship as a cargo ship temporary worker to repay debts. But that was the beginning of a spectacular human experiment. Suddenly, the ship shook greatly and the scene in front of it began to distort with a fierce headache. Before the request to move to grasp the situation, a disastrous scene unimaginable has spread …. Astonishing national overturn suspense where the world's largest urban legend "Philadelphia Project" and the modern world are intertwined!

After winning the battle of Katze Plains and founding the Sorcerer Kingdom of Ainz, they aim for a utopia of perpetual continuity and prosperity, a world where many races kneel before Ainz. As the first step toward achieving this goal, Ainz heads to the Empire to strengthen the Adventurer’s Guild and incorporate it into the state. Behind the scenes, the nations of the world are beginning to stir with their own agendas for the Sorcerer Kingdom...! Ainz's high road, once again!

In Tokyo, suspicious cases are occurring where the victims have all of their blood drained from them.
Mikogami Keiji, a detective who also wants revenge for his lover, killed 10 years ago, pursues the culprit, the “Man with two faces”.
What is the identity of the silver-haired girl who observes him…?

"So, Hikaru is no more... If that's true then..."

Yoshiki and Hikaru are two boys who live in a certain village. They're the same age and have always been together growing up. But one day, Yoshiki noticed that "something else" has taken Hikaru's place. Even after learning of this, Yoshiki still wants them to be together. And so, his life with the "something" that looks like his friend begins.

At the same time, strange incidents keep occurring in the village...

Note: Won the Traditional Chinese Global Special Prize at the eighth Tsugi ni Kuru Manga Awards in 2022.

As the grandmaster who founded the Demonic Sect, Wei WuXian roamed the world in his wanton ways, hated by millions for the chaos he created. In the end, he was back-stabbed by his dearest shidi and killed by powerful clans that combined to overpower him. He incarnates into the body of a lunatic who was abandoned by his clan and is later, unwillingly, taken away by a famous cultivator among the clans—Lan WangJi, his archenemy.

This marks the start of a thrilling yet hilarious journey of attacking monsters, solving mysteries, and raising children. From the mutual flirtation along the way, Wei WuXian slowly realizes that Lan WangJi, a seemingly haughty and indifferent poker-face, holds more feelings for Wei WuXian than he is letting on.