There's the flower of Takamine which every boy admires, Hanae Riko.
Than, there's the plain boy who got proposed to by that most beautiful girl in school, Niiyama Minato.
Without knowing what's happening, the curtains on these two's newlywed life rises!
For some reason, my bride who's too cute and happily follows me around everywhere refuses to leave my side...

Following her mother’s passing, Midori is now not only responsible for raising her little brother, Ai, but she’s also tied down by housework and other school commitments, making it hard to establish any form of social life... Until she meets a man in the courtyard at school. Will he change her life or will she change him?

Meet Haruka Kawatsuji, a young boy who miraculously survived a fall from his apartment's balcony as a child. Unfortunately, despite his best efforts to find that same thrill in sports and horror movies, he's never quite managed to feel as alive since. However, that may all be about to change in a fateful encounter with one very eccentric girl!

From mangaupdates:

Born into a wealthy family, she lost her mother at a young age.
She is Riona, a girl who was raised by a single father.
At the girls' school she attends, she has many friends and a special partner of hers,
She lives feeling a little lonely that her busy father has just left her house.

One day, her father bought a robot that she said was her "housemaid"
She witnessed the act of "Forty"...?

A girl who wants her affection and a robot who doesn't know her feelings.
A dramatic story of gems!

From Phoenix Serenade Scans:

Meet Colette, a young doctor. Since she's the only doctor in town, she has to attend to everything, and quite honestly, she thinks she needs a break. One day, she's so frazzled that she jumps into a well. But, she didn't die? Instead, she finds herself in the underworld, where she encounters Lord Hades. Somehow or the other, she becomes Hades' doctor. Follow Colette in her new (though still busy) life, now with Hades thrown into the picture!

Macabre manga master Junji Ito applys his singularly anxious touch to a comic book adaptation based on No Longer Human (Ningen Shikkaku in the original Japanese), a classic of modern Japanese literature written by Osamu Dazai. The poignant and fascinating story of a young man who is caught between the breakup of the traditions of a northern Japanese aristocratic family and the impact of Western ideas. Portraying himself as a failure, the protagonist of Osamu Dazai's No Longer Human narrates a seemingly normal life even while he feels himself incapable of understanding human beings. Oba Yozo's attempts to reconcile himself to the world around him begin in early childhood, continue through high school, where he becomes a "clown" to mask his alienation, and eventually lead to a failed suicide attempt as an adult. Without sentimentality, he records the casual cruelties of life and its fleeting moments of human connection and tenderness.

"If you blush, you lose."
Living by this principle, the middle schooler Nishikata gets constantly made fun of by his seat neighbor Takagi-san. With his pride shattered to pieces, he vows to turn the tables and get back at her some day.
And so, he attempts to tease her day after day, only to find himself victim to Takagi-san's ridicule again sooner than later. Will he be able to make Takagi-san blush from embarrassment even once in the end?

Note: Won the 66th Shogakukan Manga Award for the shounen category in 2021.

Once upon a time in the city of Kobe, there was a girl and a boy. Both lived under abusive households, and the two swore an oath to be together until death. However, they are quickly separated, seemingly forever. That is, until a chance encounter reunites them three years later...

In the medieval town of Naudars, albino children hold a revered and protected status. Dorothea is one of these children and she has always wanted to see the world beyond her cloistered existence. When Naudars is attacked, all able-bodied men rise to defend their home. But Dorothea is prepared to defy tradition and enlist in the military. Like Joan of Arc, she must deal with the prejudices of those who are scandalized by the very existence of a young woman warrior. This spirited, sword-wielding girl has to defend herself from charges of witchcraft at the same time she's defending the land she loves.

Good-for-nothing Shibata Michiko is back! And with her back are her never-ending troubles. Will she be able to stand on her own feet this time around or will she have to keep on relying on her superior, Kurosawa Ayumu, to get her out of her misery? Hop on board to take a ride for a fun and romantic journey with a woman too good for her own idiocy and a man too good for his own kindness.

Minato is a college student who died in a plane crash and was reincarnated in a fantasy world. He was raised alone in the wilderness by his succubus mother, and now he tries to make his way as an adventurer

Yato is a minor god whose dream is to have a lot of followers worshiping him and praying to him. Unfortunately, his dream is far from coming true since he doesn't even have a single shrine dedicated to him. To make things worse, the only partner he had to help him solve people's problems, had just quit the job.

His godly existence and luck just might change after he stumbles upon Iki Hiyori and saves her life—a feat which also leaves her in quite a predicament as she is stuck with him until her problem gets resolved. Together with Hiyori and his new partner/weapon Yukine, Yato will do everything he can to gain fame, recognition and just maybe, one shrine dedicated to him.

Two women who are just friends make a pact... "If both of us are still single in 5 years, let's get married." Five years later, they meet again, and their married life begins.

Serialised in Yuri Hime starting in November 2020.: https://www.animenewsnetwork.com/news/2020-10-17/donuts-under-a-crescent-moon-shio-usui-launches-new-manga-in-november/.165322

Lydia, the daughter of a count, reincarnated in an otome game, "Easy Love Simulation Reincarnation System." Life should have been easy… However, because she changed the god's scenario, she has no luck?! With two failed attempts at marriage, worried about finding a decent man to marry, a black knight, who misunderstood that she was looking for a "sacrifice" for drug experiments, came?!

From MangaHelpers:
From the perspective of an alien planet with super-advanced technology and tiny (1/60th the size of a human) inhabitants, planet Earth was the perfect location to banish their worst criminals. Five of said criminals were sent to the planet to be exiled, attached to little critters like frogs and rabbits so they can never be fully active. Due to an accident, these five criminals managed to escape and attach themselves to five different girls that were nearby. The one responsible for the banishment of these five criminals now must detach them from the girls by mouth-to-mouth release.

By Paradise Love Scanlations:

Jebron is a country ruled by the Five Kings, who were born from the blood of a god. Sage, a young orphan, has a little sister named Hoshimi with the power of the gods, and in order to protect her, he decides to put his life in danger before the cruel and proud Blue King.

However, he by chance encountered the Red King named Gules, kind and sympathetic, by which he begins to have feelings.

But Sage is owned by the Blue King, and who feels insulted by the situation.

Lina, a healer with a magical power called "Saint," is one day suddenly exiled from her childhood friend's party of heroes! Lina is shocked by the unreasonable expulsion, but she quickly forgets about them and decides to live the slow-life she longed for! Just at that moment, another childhood friend appeared, Henri who is now a nobleman. He is excited to see Lina again for the first time in 5 years, but for some reason there are suspicious movements among the heroes' party?! A second life filled with trouble for the strongest saintess who just wants to live leisurely, the long awaited comic serialization!

Narita doesn't believe in love at first sight, but when he meets a cute high school girl named Tsubasa, he falls for her immediately and even confesses to her. They both decide to start out as friends, but then she comes out and tells him the she has multiple personalities...!?

Toradora!'s story begins with the male protagonist Ryuuji Takasu who is frustrated at trying to look his best as he enters his second year of high school. Despite his gentle personality, he has a natural outer-appearance which makes him look like an intimidating delinquent so he is utterly hopeless about his chances of getting a girlfriend anytime soon, and does not have many close friends either.

After being greeted by his hungover mother in the morning, Ryuuji goes to school and is happy to find that he gets to be in the same class as his best friend, Yūsaku Kitamura, and crush, Minori Kushieda. However, it is then that he unexpectedly knocks into "the school's most dangerous animal of the highest risk level" - Taiga Aisaka - who just happens to also be in his class.

The girl I love is my brother's ex-girlfriend. She's a trashy girl who's clingy, stubborn, and takes advantage of my weaknesses. But I can't seem to stop our relationship.