An average romcom told from the perspective of the losing childhood friend. Other things happen as well.

Rin's village getting attacked by bandits doesn't keep her down in the dumps for long! Picking up a sword housing an extraordinary pervert… I mean hero, Siegfried, she sets off on a journey of many bouts with various degenerat… ahem, heroes!

Be spoiled rotten as a little brother by 「Heart-throb」-deficient older sisters!?

Touri, a college student searching for his older sister whom he was separated from 10 years ago, discovers that his admired senior, Sara, is a former magical girl, and that his sister was once a magical girl as well.
He continues his search for his sister with Sara’s help, but it seems the magical girls who have become “older sisters” can only draw magical power from heart-throbbing romantic excitement...?
The harem romance comedy featuring a former magical girl “older sister” and her “little brother” begins!!

The mom characters who appear in the game MamaFan are all unfortunate sub-heroines who always get bad ending routes. “Why... Why do such cute moms have to die?!”. Even though the protagonist tried very hard to request a route where they get saved, all of his efforts were in vain, making him spend his days in frustration. Then on a certain day, he suddenly gets reincarnated into the world of MamaFan... However, he gets reincarnated as a villainous aristocrat who's got nothing but the worst routes. This guy, who's crazy about mom characters — his fulfilling days of saving his beloved mom characters and his journey to create his harem full of plump women are about to begin!

Tokimori-san is a beautiful and successful woman. But when she's off the job, she tends to be a bit absent-minded! Living together with the charming Tokimori-san always makes me nervous!

Hidden is a scout who joined the hero's party to defeat the Demon King. But the hero, Ashram, and his party members did not know anything about the fundraising, the spies sent by the Demon King, or the assassins sent by the rebels.

Deciding to support from behind the scenes, he took on all of the dirty work for them. But his party members did not know about what he had done for them, and ended up casting him out of the party...
With nowhere else to go, Hidden headed toward the dark guild.

A man who has been reincarnated in a different world acquires the vocation of "pole master" in the new world! However, that special ability is not used to defeat enemies, nor to gain power, but to embrace the beautiful girls who appear one after another with all one's might! A unique story of conquering another world begins here!

The protagonist, “Sao” has been reborn with his memories from his past life. He’s born as a son of a rural villager, but his true identity is a reincarnated person with cheat abilities and the knowledge of the modern world. With the class “Rod Master,” he received as he grows up, and the many skills that came up with it, he can defeat enemies, help people, and even for sex.

Cute girls doing risky forex trading.

"Become a hero!"

With that dream in her heart, Shirumiruku Eru became an adventurer. But because she had no special skills, she struggled to find companions. That's when she got the chance to join the dungeon investigation led by Yuris, a great sage who specializes in healing. However, rumor has it that all adventurers who accompanied Yuris have had their spirits broken and abandoned their path as adventurers halfway through... You see, Yuris had a bizarre interest in getting excited by the sight of female adventurers being attacked by monsters.

Over Rev! is a manga about a senior graduate named Ryoko. A while back, she injured her ankle in a track meet. Since then, she didn't know what to do with her life, until she finds out about street racing...

In a world where the demon lord had been defeated and peace had arrived, Rex the magical doctor ran a clinic. But the patients brought in were all beyond saving compared to the world itself, people who'd XXX slimes or stuck their peens into man-eaters!? An otherworld perverted medical comedy begins!!

One day, Sanada Shirou, who works for a black company, is transported to another world. Using his "creation magic", an ability he gained when transported, he opens an inn and is supposed to lead a slow life, but this other world is a little strange?! It is a world where women are overwhelmingly dominant, where women do dangerous work and battle, and men are powerless and are protected! The daily life of entertaining (in many ways) the women of this other world begins...!

Web novel: https://kakuyomu.jp/works/1177354055503576578

Shimazu Toyohisa, a real-life samurai who fought in the pivotal Battle of Sekigahara. In his dying moments, Shimazu is transported to a world of magic with other famous warriors throughout history. These warriors are forced to fight each other in an endless battle.

Note: Nominated for the 4th and 5th Manga Taishou Awards.

From ANN:

The story revolves around Tomoya Mizuhara, a 13-year-old boy who suddenly gains a big sister when his father remarries. 17-year-old Ichika is a little strange, and her affection for Tomoya is rather overwhelming, if not scary. On top of things, Ichika's friend Ruri is the ultimate sadist. Then there is Ichika's big-breasted quarter-Japanese friend Marina.

Several decades have passed since the Hero defeated the Demon King and brought peace to the world, and the Hero has grown old enough to only vaguely remember his magic spells. When the remnants of the Demon King's army attack the Hero, he decides to set out on a journey again. This time, it's not a journey to save the world, but a "death preparation journey" to look back on his life.

For years, the commander of the knights, Warrena, has contributed to keeping the kingdom at peace. Despite surviving a year-long campaign, his fiancée, the third princess, became pregnant on top of having an affair. In order to cover up the family scandal, the royal family declared that Warrena had passed away during the campaign.

He gives up on his kingdom out of despair and decides to use his compensation money to live a slow and leisurely life in the countryside. One by one, he encounters a saint and a fox girl, and they eventually end up falling for him. However, he himself has a reason why he can’t fall in love with them...?!
Original Web Novel: https://ncode.syosetu.com/n2267ic/

Towa was reincarnated in the same other world for the second time. There, although time had passed since his first reincarnation, his friends at the time were spending their days feeling too heavy for Towa...

“Isn't it okay to stay by your side forever?” "If you disappear again, I'll die and chase you this time!?"

The beautiful elf they meet again and the sexy succubus heroine press for physical contact as if to make up for the time they lost, and Towa, now a young boy, is violently approached...?

“Towa, could you please take me too?”

A harem fantasy begins with the heroines who have feelings for each other after reincarnating for the second time!

『The Overwhelming Adoration of the Sweethearted Lady!』

Alicia Ozrind, known in noble circles as the Frost Duchess, is feared for her cold and unyielding demeanor, earning her the reputation of a villainess among the aristocracy. But beneath her icy exterior lies a girl who simply struggles to express her true feelings. There is, however, one person who has melted her frozen heart—a young servant named Gray, who works as a cleaner in her grand estate.

"You’re the only one who truly understands me!"

Completely smitten and vulnerable around Gray, Alicia showers him with unrestrained affection. Whether it’s during meals, in the bath, or even before bedtime, her overwhelming sweetness knows no bounds! But their relationship isn’t without its hurdles—Alicia is a noble lady, and Gray a mere commoner.

Will Gray manage to endure the relentless love of this endearing aristocrat? This is a sugary-sweet, heart-melting romantic comedy set in a fantasy world!

Gone are the days of swordsmanship and chivalry. Now is the age of gunpowder and war. Our story has two players. The first is Orcsen, a unified nation with many demonic races, led by the oft-reviled orcs. And the second is Elfind, the kingdom ruled by the beautiful yet vainglorious elves. Dineru, chieftain of the dark elves, has been forced to flee her homeland from enemies she had once trusted as friends. In the midst of their forced diaspora, she has a fated encounter with the leader of Orcsen, the orc king Gustav...

When an entire bus of people are summoned to another world, Souma Nagi doesn't go along with the idea of being a Hero like the rest. Thus he leaves the palace and starts his life in another world with his ability to restructure skills. Based off the Light Novel by the same name.