Many Shonen Jump characters have big dreams, but this character's big dream is a nightmare! A very realistic reoccurring nightmare where a giant monster destroys a city. And it always ends with Kou, the poor dreamer, getting crushed under the rubble. But when Kou meets an unusual man who somehow knows about the monster in his dream, his nightmare takes on a whole new meaning. (Source: VIZ Media)

This is a story about Remille, an adventurer who died. Specifically, he's died a lot—seven times now, always at the hands of vicious monsters. Every time, though, he's returned to the same day, three years prior. He's tried everything at this point, from sword fighting to magical arts to beast taming, but it always ends the same way. Is there any hope for him in this 8th loop of his life? Perhaps a chance encounter with Princess Ciel might change things? Her magical eye can see all possible futures—and with Remille's vast stores of XP from seven lives of adventuring, just about anything is possible! Add in the fact that his erstwhile feline friend Catra isn't exactly what she seems (and how the princess herself wants to party up with him) and this 8th loop might just be the charm! (Source: J-Novel Club)

In his past life, Chou Sekiei was the undefeated war hero Kou Eihou—no pressure, right? Now, a thousand years later, all he wants is to get a nice, cushy job as a civil official and build a quiet life for himself. Too bad that he still has fighting prowess he can’t explain. Too bad that as a child, he was taken in by a renowned general and trained alongside Chou Hakurei, famed for her talent and beauty. Too bad that he’s gotten into rescuing pretty (and pretty immature) merchant prodigies. Sekiei was really looking forward to some peace and quiet so he could kick back and read, but when the foreign nation of Gen launches an invasion that triggers war, he’s forced to put his books down. With the power of skills he’d hoped never to put to use again, Sekiei will once more have to make a name on the battlefield... Will he and his friends be enough to save their homeland? (Source: J-Novel Club)

Hanelope knows her dad, Prince Hart von Reinhart, is a good person, it’s just that the world doesn’t know it! The cunning Saint Asta has fooled everyone into thinking the prince is a cruel monster, so Hanelope is determined to put a stop to it once and for all! Hiding her quick wits behind a cute smile, she fights against pesky vassals, malicious rumors, and the manipulative Asta for her dad's happiness. Can Hanelope give her dad a happy ending? Or is this too much for a little girl to handle? (Source: Tapas)

Oriental Fantasy that goes beyond this world and beyond! The vast world of characters born by reinterpreting Korean myths and narratives, powerful developments, shrewd settings, and deep imagination fascinates you. (Source: Lezhin; translated) *Note: chapter count includes 2 extra chapters.*

Erontropy is the power of love! The quest for love between a shrine maiden from another world and a high school shrine maiden begins!! (Source: Champion Cross, translated)

An anthology of Trinity Seven: 7-nin no Mahoutsukai by various mangaka.

There is a mysterious breed of mechanical creatures, aptly called “Machines,” who will, on the condition that their Host never love another person for as long as they live (else the debt will be paid in blood), grant their wielders fortune and prosperity. And where a Host has betrayed his Machine, you are sure to find a member of the mysterious Gari family, wielders and hunters of Machines, in the ensuing carnage… (Source: Turtle Paradise)

Mizuki is a bespectacled university student who lives with her grandparents. One day, there's a little trouble with thugs, and two strange women, Suzaku and Kamado, step in. That night, a yakuza underling comes and murders Mizuki. Luckily, Suzaku comes along and (kind of) resurrects her! It turns out that Suzaku and Kamado are deathless beings who consume time from the people around them. Now Suzaku and Mizuki appear to be sharing the same body. (Source: MangaHelpers)

Tateha Shinki has been going steady with his girlfriend Ageha for a year now. They were finally ready to take the relationship to the next step by having sex, but just as they were about to start, Ageha dies. According to Ageha’s mysterious older sister, this has been going on forever in a continuous loop. Every version of Shinki and Ageha in all the parallel universes eventually end with Ageha’s death when the two lovers try to make love. Although Shinki has the option of giving up the relationship with Ageha and preventing her death, their love for each other is too strong. So Shinki will go through all of the infinite possibilities of their relationship until he finds the one that will save Ageha.

An anthology comic of Umineko no Naku Koro ni by various mangaka.