On the day the empire fell to rebellion and invasion from another world, Valen met his end alongside his sister, the Emperor. But when he opened his eyes again, he found himself 40 years in the past. This time, he vowed to do whatever it took to prevent the world’s destruction and protect the Emperor. And his solution? To live an even wilder life than before. “If I was a scoundrel in my past life, then this time… I’ll be the ultimate menace!” (Source: Ridibooks, translated)

Eun-Chae is a singer who hides her true identity from the public using all kinds of tricks. One day, she crosses paths with Do-Hyuk, a handsome company director who seems determined to make her confess her secret. The reason? Do-Hyuk wants to know why his father is suddenly interested in an indie rock band he'd never heard of before. What will become of Eun-Chae's secret? (Source: Naver, translated)

Cameraman Genji is someone who loves ghosts and the supernatural but he can't see nor feel them! He wants to someday capture them on camera, so he moves into a place that might be haunted. He gets lucky, there is a female ghost around his age who had died in his new place. Ever since he was able to get a photo of himself and the ghost, he now wants to get to know her as a potential girlfriend! But is this ghost enthusiast too much for her to handle!? *Note: Chapter count includes one extra*

Kang Taeyang, a chef who chased his dreams. One day, he lost everything due to a single choice. But an opportunity came to Taeyang, who was spending hopeless days working odd jobs. \[Aurora is hiring employees.\] A single line of text changed everything for him! (Source: Naver, translated)

Who says that you can't get rich fishing? Farm some fish, farm some shrimp, salvage a sunken ship along the way. And pretty soon you're dating movie stars and supermodels. This is the story of the fisherman Xiao Peng, who became the richest man in the world, starting with a small fish pond. (Source: Tencent, translated)

Jia Gang, the greatest swordsman of Joseon, fails to avenge his master and dies, descending to the underworld. Possessing a special soul, Jiagang is promised a chance for revenge by the King of the Underworld and takes on the path of a Grim Reaper who captures evil spirits. (Source: Naver, translated)

Banana Nangoku, a popular BL manga artist, gives birth! When a strange feeling suddenly came over her, she proposed to him, "I don't know what's wrong with me, but I want to have your child." They got married. She got pregnant. The pregnancy went smoothly. And then, "Tantan" was born. What is this child? Where did he come from? The source of the mysterious compulsion will be revealed!　Hmmm.... this will be a 120% doting and 300% sweetness story. (Source: Comic Days, translated)

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https://www.cmoa.jp/title/301656/

One of the top expert killers, tired of endless assassinations and having survived a cruel and suppressed life, decided to escape the world’s strictest assassin organization. A chance came during one of the nights when the organization was least prepared, and he fled. However, he discovered that the night he escaped was the night when the organization had sent out many experts and ability type users to capture a phoenix weakened by its rebirth. Eventually, when surrounded and knowing that his situation was hopeless, he desperately shot at the ability user blocking his way. This helped the phoenix break out of the encirclement and grant him his one and only wish – freedom. The assassin’s soul was sent back to his ten year old self. He woke up at a point in time that would allow him to drastically change his fate – he killed the two assassins that picked him up and brought him to the organization. Thus, he began a brand new life. Two naive little girls and one experienced boy living together and filling their days with warm memories of childhood…

An anthology comic of Fate/Grand Order by various mangaka.