Yachi, Taiyou

Half a century ago, the Cosmic Demon Delekacon was sealed away, averting Earth's destruction! And now, Pec—the demon's left eye known as Eye Boy—is living it up as a permanent freeloader with his best friend Keigo?! A groundbreaking 79-page one-shot mixing youth, sci-fi, and friendship!

(Source: MANGA Plus)

Eye Boy

アイボーイ

Iori, Wataru

To avenge her murdered parents, and to bring peace to the people, a justice-driven princess of a fallen kingdom rises up alongside her retainer! But the princess herself is unbelievably weak?! A spunky princess and the ultimate retainer!

(Source: MANGA Plus)

Manimani!!

Go with the Flow!!

まにまに!!

Nabe, Hideaki

In the Magic Realm, mages train hard to master their arts. However, one mage named Toya Osoegawa only cares about using magic to live a comfortable life! But now, thanks to the orders from the Divine Magus, the least motivated man in the Magic Realm has been sent to the Human Realm! Can he use his bizarre magic to protect humans and send evil wizards back to their world?!

(Source: MANGA Plus)

Tonari no Osoegawa

The Mage Next Door

隣の小副川

Suganuma, Tatsuya

Horo Mitsuboshi is a super model prisoner who was born and raised in the slammer. But in order to bring peace and niceness back to wild Nobana-shi Prison, he'll have to stand up to the super death row prisoner. Are you following this so far?

(Source: MANGA Plus)

Included one-shot:
Volume 1: Fuzoroi no Bunshin-tachi
Volume 2: Joke de Jorei

Nice Prison

NICE PRISON

Satoyama, Ikkoku

"The Unsmiling Phantom Thief," Smile, steals treasure yet again to stave off his crushing boredom. Quick on the getaway, Smile leaves the police struggling to catch him, but one day a rookie officer by the name of Gonza steps up to take him on...!

(Source: MANGA Plus)

Catch the Smile!

Juuichiya, Sui

Senjitsu Yuusha kara Tasukete Itadaita Seiken desu ga

先日勇者から助けて頂いた聖剣ですが

Tarou, Mashu

Tarou, Lettuce

Kagura is a samurai girl known as the "Sword Saint" for her mastery of the way of the blade. And Raito is a boy who belongs to the race called "Ninyou" that is hated by the humans. The two met in their childhood and spent happy times together as best friends, until the difference in their races separated them. Kagura took up the sword for Raito. For the sake of them living together. The bond between the two transcends years, walls, races, reality! Surpass it all!!

(Source: Shogakukan, translated)

KaguRai: Kagura to Raito

カグライ ~神楽と雷人~

Akutami, Gege

Iwasaki, Yuuji

In 2086, Naunax, an extraterrestrial mothership carrying 50 thousand life-forms calling themselves Simurians, appears above Earth. Simurians possess powers similar to those of Japan's jujutsu sorcerers, and thus all diplomatic negotiations are redirected to the Japanese, who are tasked with assessing whether coexistence is possible.

Though facing a special grade incident rivaling Sukuna Ryoumen's attack 68 years prior, humanity welcomes the aliens—for now. Fearing that these powerful beings could declare war, Japan agrees for a Simurian envoy to accompany jujutsu sorcerers to school and missions. Two teenage sorcerers—Yuuka and Tsurugi Okkotsu, siblings and grandchildren of the late Yuuta Okkotsu and Maki Zenin—are chosen to team up with Marulu "Maru" Val Vol Yelvori, a friendly, three-eyed Simurian. As both sides withhold crucial details yet want eventual harmony, it falls to Yuuka, Tsurugi, and Maru to maintain the fragile peace and prevent mutual ruin.

[Written by MAL Rewrite]

Jujutsu Kaisen Modulo

呪術廻戦≡〈モジュロ〉

Sakurai, Ato

Aoi, a demon boy hiding his true identity, lives a quiet life as a normal high school student. But one day, a girl suddenly falls from the sky, and she's not what she seems. Get ready for a modern-day pop demon battle from a highly skilled artist in the manga world!

(Source: MANGA Plus)

Kikikaikai

鬼鬼戒解-キキカイカイ-

Tosaya, Kou

A man working at a soul-crushing corporation discovers he's trapped in a time loop at his office and he's the only one who knows it! A one-shot manga about corporate hell and time paradox.

(Source: MANGA Plus)

Oshigoto wa Owaranai!

Work Never Ends!

お仕事は終わらない!

Tsukiji, You

After a terrible accident left Seita hanging between life and death, it was Amé, a genius young inventor, who saved him...!

(Source: MANGA Plus)

Good Luck Time Machine

グッドラックタイムマシン

Andou, Kouhei

Mabuchi, Asako

Rio Mikazuki is a shinobi. That is, a shinobi living in the modern worldーa "shinewbi" of sorts. All of the ninjutsu and ninja tools of the current era are at her immediate disposal and are considerably more high-tech than before. However, it seems as though her senior partner, Igarashi, has learned how to use real ninjutsu through the long-forgotten traditional training methods of the old shinobi... The stage unfolds for a romantic comedy of two shinobi working in a modern world!

(Source: MANGA Plus)

12 Manga Like Gintama