Keita Sato (41, single) is overworked at his corporate job, dealing with tedious and stressful tasks day in and out. How does he relieve his stress? By sneaking into modern-day "dungeons," using them as a batting cage, and blasting away ferocious monsters! One day, his live-in niece Hikari secretly follows him and livestreams his adventures, only for his unbelievable strength to go crazy viral!! Keita unknowingly captures the attention of not only viewers, but other big-name streamers. So begins the fantasy tale of an ordinary office worker's unwitting rise to fame and glory! (Source: MANGA Plus)

Spin-off set in the same world as Eureka Seven AO, following the adventures of heroine Yuna Maltan.

Tomoya hates his tutor, Hirasawa. Obsessed with his destruction, Tomo creates a doppleganger of himself to do his dirty work for him. But instead of being the evil minion Tomoya had hoped for, Chibi!Tomo loves Hirosawa! But is hatred really the only thing big Tomoya feels for his tutor? Or is hatred only a symptom to the true illness...? (Source: Tsuyu Translation)

The most fearsome final boss saves people today too!? A villain-hero you can’t help but react to is born!! He wanted to become a “hero of justice,” but the world he reincarnated into is that of a game—and he’s the final boss!? Even though his heart genuinely wants to be kind to others, the villain Waltz’s words automatically convert into an arrogant, condescending tone against his will. No matter how pure his intentions, everything that comes out of his mouth sounds like the speech of a tyrannical overlord. Can he possibly tame that final-boss-level talent and involuntarily arrogant attitude!? An awkward hero’s growth story begins here!

When I was eighteen years old, I thought that love is the courage to fight against the whole world for you. At the age of twenty-five, I discovered that love gives you the confidence to embrace the whole world. If you say that young love is as unpredictable as the wind, then I would like to spend the rest of my life in your arms. (Source: Bilibili, translated)

Anthology of short stories by various mangaka focused around the animated TV series Kaleido Star.

A young girl named Soalis was a genius at magic. By the time she was ten years old, she had become one of the top court magicians in the country. Now at the age of sixteen, she is respected and called a saint by the people. Whether it was Demons, Demon Kings, and Evil Gods, she had defeated anything that threatens her country. But one day, she is tricked by her own little sister, who was also a court magician. She was framed for a crime she did not commit, as she was found to have the banned magic potion, Elixir, in her room. She was tricked by her sister, whom she trusted, and without realizing the trap, Soalis was sealed inside the strongest mythical grade magic tool. However, it only took her 20 years to break the powerful seal that was supposed to last for hundreds of years. In addition, while she was sealed, she had created spatial magic to escape and return to the kingdom. While in the seal, Soalis had not aged and was still a 16-year-old-girl. In the past twenty years, the kingdom had been invaded by demons and had fallen into a critical situation. Expecting to be treated as a criminal, Soalis hid her own identity as a saint and started over. The next thing people knew, the saint had returned. She would return the favor to those who wronged her. The story of the world’s restoration by the strongest saint begins here. https://www.cmoa.jp/title/259339/

In the year 2045, Internet and artificial intelligence have become widespread in the outer space. Following a massive accident at a space station, a group of children are left behind. Using narrowband and SNS, low intelligence AI, and smartphone-controlled drones, they overcome numerous crises.

The mightiest hero, holding both the supreme title of “Magic Saint” among mages and “Sword Saint” among swordsmen, returns to the world 1000 years after becoming a legend! Barua Wesgarden, the “Magic Sword Saint” who mastered both magic and swordsmanship and etched his name at the pinnacle of human history, once faced the absolute Demon King Giranhel in a battle to determine humanity’s survival. However, due to interference from a mysterious force, both Barua and Giranhel lost their lives. For 1000 years, Barua’s soul remained bound to the world, burdened by the regret of dying before achieving his goal. But when a boy named Direa Wesgarden, who idolized the Magic Sword Saint, is fatally attacked by monsters, Barua seizes the opportunity to return to the living world by inhabiting Direa’s body. Now, as Direa—who was once considered a failure—Barua, the legendary Magic Sword Saint, must navigate the world of 1000 years later. This time, can he truly protect the peace of humanity?