A bizarre one-shot by Takato Yamamoto, a Japanese artist known for incorporating "Heisei Estheticism" style to his works.

After quitting his job at a toxic company, Shiro Amata moves into the house his grandmother left him in her will. There, he soon makes two life-changing discoveries: one, his grandmother was really a witch from another world, and two, said other world is just on the other side of her closet door! Thanks to a book she left for Shiro, he also manages to obtain an all-powerful skill called “Equivalent Exchange,” which allows him to turn money from his world into otherworldly currency and vice versa. With this, Shiro decides to set up shop and sell convenient items like matches to the colorful inhabitants of the other world. His plan: make a massive profit on the goods he brings from home to become so rich that he never needs another job ever again! (Source: J-Novel Club)

Once every five thousand years, the twelve beast kings do battle to determine their places in the zodiac. That time has come once again, and the snake king Jaou has chosen Makabe, the "queen" of her school, to be his proxy in the upcoming war.

“When I grow up, I wanna marry you, hyung!” When Woojin first heard Eunsoo, the little kid from next-door say this to him, he chalked it up to childish naivete. However, it turned out to be only the first of the many, many declarations of love Eunsoo would make to Woojin over the next few years. Cut to present day, although Eunsoo’s love for Woojin has remained unchanged, Woojin still thinks of him as the kid he used to babysit. Things start looking bad when neither side is ready to give. But Lady luck intervenes to break the stalemate! Woojin’s company is suddenly in need of a new illustrator and Eunsoo is the only perfect candidate available for the job! Excited at the prospect of working with Woojin, Eunsoo begins concocting plans, confident that a change of place will become the friction that will help Woojin see him in a new light. But Woojin is onto his shenanigans and has no intention of falling for his seductions! Only one question remains now: Will love bloom on the clock or will it fizzle and burn out? (Source: Lezhin US)

Vivian wakes up as a dying villainess, engaged to a cursed prince feared across the continent. Her only goal is to escape the tragic fate she knows is coming, but the more she tries to stay out of the story, the deeper she's pulled into it. And the closer she gets to the prince, the more he misreads her intentions. Now caught between survival and obsession, Vivian must navigate a romance she never asked for. (Source: Tappytoon) *Note: First released in English, with the initial eligible release in Japanese followed by Korean, making it a manga by our standards.*

The Qihuang Kingdom is run by women. As the head eunuch, Yan Lang’s dream was to wander aimlessly in life, and resign with honor while disguising herself as a man. However, Yan Lang unexpectedly encountered the biggest failure of her career when the new empress ascended to the throne. Wait a moment! Who could explain to her why the empress was a man? Yan Lang panicked and barely managed to beg him to spare her life. Before she could even celebrate, he forced a pill down her throat. “All this drug will do is to keep you in check. Behave well, and I will make sure you have nothing to worry about,” he said. “Just be a good empress! Starting today, I’ll be your loyal subject during the day, and serve you well at night,” she said. Every day, Yan Lang wandered on the edge of life. It wasn’t until one day that the empress discovered her secret that Yan Lang, the provincial commander, was a woman! (Source: Bilibili Comics)

*"I thought I was doomed to endless despair."* Ylledia, an immortal, "trapped" by eternity, feels helpless witnessing her loved ones perish. Her deep sorrow intensifies when she has to let go of the only other immortal in the world. Yet, just as she's losing all hope, a vibrant, golden-haired mortal named Dennis enters her life, suggesting they "link up". The moment Ylledia meets Dennis, a glimmer of hope for the world is rekindled within her. Could this boy be the key to saving the world? Fueled by the newfound hope over their magical connection, Ylledia commits to saving the world once again. (Source: Tappytoon) *Note: Includes three extra chapters.*

CEO Liam Bian is young, brash, and charismatic. He knows what he wants, and he’ll take it, even if it means rolling up his sleeves and bloodying his knuckles. But he meets his match in Miles Han, the steely heir to a conglomerate that’s out to destroy Liam’s own budding empire. When Liam confronts Miles with a baseball bat, it’s fuel that turns their rivalry into an inferno, sparking an attraction that burns red hot. Now they’ll do anything in business—and in the bedroom—to take the other down. (Source: Tapas)

Shen Ying, a foodaholic girl with no sense of direction from the modern world, came to another world through time travel. She had no money and couldn't get out of the spirit world. Incredibly talented as a martial arts master but also easily neglected, Shen Ying is like a bug in a video game. Shen Ying took Yi Qing, an upstanding swordsman, as her disciple although, at first, she only wanted him to cook for her. Yi Qing, a man of integrity and conscience, was defeated in a fight with a demon and fell into the yard of Shen Ying who later became his master through serendipity. However, Shen Ying and Yi Qing always talked past each other. Later they entered Xuantian Clan and with Shen Ying's simple explanations and his own imagination, Yi Qing gradually became an unbeatable swordsman in the world. This is a funny story about cultivation featuring two characters with strikingly different dispositions: an upright, gentle disciple and a hilarious but powerful master. (Source: Webnovel)

When Sorel Idris turns around to find a stranger in her home, she isn't that surprised at first. After all, her father warned her this would happen. But when she detects the faint scent of blood in the air, she can't keep her rabbit ears from popping out in shock. Her father failed to mention that her soon-to-be husband, Duke James Calier, was a vampire centuries older than her! On top of that, she discovers she's the heiress to a considerable fortune. Sorel slowly adjusts to her newlywed life while attending the university of her dreams. (Source: Tappytoon)

Kosuke Yuki, an ordinary high school boy on his first day of school, He saved an old man (actually God) who was almost hit by a train and died. As an apology, he was supposed to be reincarnated in another world with God’s cheat powers, But he was accidentally sent back to the real world. …… cheating ability as it is. Since then, he has been involved with a crazy criminal and has been noticed by a beautiful girl who is the class representative, and finally got involved in a shady Onmyouji war, The days are hectic and he is involved in a shady Onmyojutsu war. Will Kosuke’s dream of a peaceful school life be shattered in an instant? A (heartwarming) battle fantasy of cheat high school students and Irregulars unfolds in the northern land. *Source: MangaPlaza*

Data is a kind of Magical Boy series manga by Tachibana Kaimu. The two main characters, Sakura and Yuki, are on quests to gather stones with magical powers. In doing so they are also hoping to uncover the mystery as to why they both seem to have lost their memory. Although this is a shoujo series, I'm pretty positive theres also something shounen-ai going on between the two (subtle but there....). A lot of new characters who are also "hosts" for the stones join in the fun as the story progresses. (Source: GOoC)