In the feudal era, there are seventy-two demon lords who are all vying for supremacy. Ashtarot, the weakest and youngest demon lord, used to be a researcher in his past life. Though he isn't as powerful as the others and doesn't have an army, he excels in practicality. Ashtarot employs cunning tactics, such as eliminating heroes before they become a threat and devising scheming plots to gain an advantage. Ashtarot's ultimate goal is to become the Demon King by bringing all the other demon lords under his rule. With the help of his loyal demon maid, Eve, and his subordinates, Ashtarot has become known as the demon lord who always emerges victorious by using his practicality and mastery of realistic tactics.
Sakura Kousuke joins a different high school as a sophomore to move on from his remorseful history and begin anew. Unaware of his fate, he discovers five fellow students with the same name who trigger his past recollections. Kousuke must grapple with his true identity, confront his errors and find solace in his old pals and a lively girl who unravels him more than anyone else.
An ordinary college student is pulled into a manga world and wakes as a marquis’s daughter engaged to a prince. Cast as the villainess, she learns the match exists only because the prince fears her father’s power; when that power falls, he breaks the engagement and ruins her family. Knowing the story’s route, she works to change the ending by persuading her father and planning to stop the house from collapsing.
Office Lady falls from a building is reincarnated into another world and ends up at the Devil Kings castle. Can she save him from the bad ending?
Viscountess Sonia suddenly regains memories of her past life—she's been reincarnated as the heroine of the otome game "Saint Project." Now able to see the "gears" that control people according to the script, Sonia sets out to avoid a future where she ends up with the crown prince and other high-ranking nobles who are her love interests. The only way to break their "gears" is to hug them?! ___ Original Web Novel
Yuri dies after a long illness, and is reincarnated by a god into another world. He is given "Saiteigen no Nouryoku" ("just enough/basic skills") and a new name, Yuri, and hopes to live a slow, self-sufficient life. But upon reincarnating, things get dangerous immediately (gets attacked by a wild boar etc.), and he has to use his skills to survive, build up his living conditions, deal with monsters, etc.
An alternate world had beckoned Touka Mimori and his entire class, summoned by the Goddess Vysis. Despite many possessing immense power, Touka was deemed the weakest and, as a result, was faced with certain death. However, Vysis' demeanor quickly shifted from amicable to malicious, causing his classmates to turn against him and sentencing Touka to navigate through a perilous labyrinth. Although Touka was considered weak, he possessed a unique talent: an "Abnormal State Skill" accompanied by a pair of weaker abilities that induce poison and paralysis, proving highly effective against powerful monsters. By using his abilities, Touka gains new allies and powers as he aims for retribution against the vengeful goddess who banished him to this dangerous world.
Manabu Katou, an overworked salaryman, dies and meets a goddess who offers him reincarnation in another world. He falls in love with her and asks her to marry him. She agrees, and they begin their newlywed life together in a fantasy world.
A girl wakes up in a rough underground place. It is the "Land of Mud," a place where souls whose bodies have been taken over by people from another world end up. A unique fantasy about the revolution of a princess whose life has been stolen from her begins.