Momona is an ordinary junior-high school student hailing from Jewel Land. At her cousin's wedding, she envies the bride, Lady Diana, due to the fact that she is marrying the cousin who she had a slight crush on. However, once she sees Lady Diana and her cousin together, Momona begins to like her, and accepts her as her cousin's bride. Just as Lady Diana is about to properly meet her and introduce herself, Momona is transported to a snowy place in Jewel Land where the ruler, Lady Jewel, is giving a speech to the Petit Ladies, girls who are chosen as Jewel Candidates to be the next Lady Jewel. Momona meets her partner and mentor, Ruby, a white rabbit, who will guide her through the tasks in becoming Lady Jewel. Whoever passes the most tasks wins and becomes the next Lady Jewel, but standing in her way is Lillian, a girl who also aims to win the title of Lady Jewel, so she can choose her brother, Cayenne, to be her King alongside her. Momona soon also begins to fall in love with Cayenne, yet Lillian doesn't want her to get too close to him. Cayenne also seems to harbor feelings for Momona, but who will be chosen in the end as Lady Jewel to decide it all? And will Momona and Lillian ever become true friends and will Cayenne and Momona ever be together?

The dark-haired bishounen is Sakon Tachibana, a puppeteer, and the other is Ukon, his favorite puppet, and best friend. Sakon is the (only) grandson of Saemon Tachibana, a national treasure of Japan famous for his manipulation of Bunraku puppets. Ukon is a child doll puppet made in the early Meiji era by the famous female dollmaker Unosuke. Together they run into murders and solve them.

Despite completing all the tasks given to them, Ainz Ooal Gown, Tanya Degurechaff, Kazuma Satou, Subaru Natsuki, and the other members of Class 2 are surprised to find out that their role as students is far from over. With no means of returning home, the class of eccentric personalities is still mysteriously stuck in the unfamiliar world. Although, as they are becoming quite fond of each other, spending more time together does not sound that bad. With the unexpected arrival of new transfer students, the comedic antics of our beloved characters continue to grow. Thus, their bizarre yet nonchalant school life continues. [Written by MAL Rewrite]

Nicholas Brown and Worick Arcangelo, known in the city of Ergastalum as the "Handymen," are mercenaries for hire who take on jobs no one else can handle. Contracted by powerful mob syndicates and police alike, the Handymen have to be ready and willing for anything. After completing the order of killing a local pimp, the Handymen add Alex Benedetto—a prostitute also designated for elimination—to their ranks to protect her from forces that want her gone from the decrepit hellhole of a city she has come to call home. However, this criminal’s paradise is undergoing a profound period of change that threatens to corrode the delicate balance of power. Ergastalum was once a safe haven for "Twilights," super-human beings born as the result of a special drug but are now being hunted down by a fierce underground organization. This new threat is rising up to challenge everything the city stands for, and the Handymen will not be able to avoid this coming war. [Written by MAL Rewrite]