Wealthy, handsome, and successful, Arthur Louis Zetes is no stranger to the greed of people. Constantly doubting those around him, he has no faith in humanity; thus, he makes a request for the perfect maid—a robot maid. However, his butler is unable to acquire such a servant due to technological limitations, so he finds the next best substitute. Marie Evans is a former child prodigy in martial arts known for her lack of expression. Drowning in debt, she readily accepts the offer to be a maid that acts like a robot. While Arthur is often blunt towards humans, he cannot help but dote on his personal robot; in turn, Marie is moved by his drive and consideration toward her.

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.

Since ancient times, the ninja and the yakuza have been at war, spilling blood around the world as empires rise and fall. So when, in the modern age, Shinoha, a ninja, meets Kiwami, a gangster following the path of the yakuza—the gokudo—and discovers they have common interests, the obvious assumption is that nothing good can come of it. But can it be that one burgeoning bromance will shake up a 300-year grudge? Who will win the struggle for real ultimate power?

After waking from a long cryogenic sleep, high school student Akira Himegami finds himself in a world he no longer recognizes. The city lies in ruins from war, society is now governed by an organization called OWEL, and traditional marriage has been replaced by a new system known as "Elsie." As Akira struggles to comprehend this drastically changed future, a familiar figure appears before him—Yuugure, who bears a strong resemblance to his girlfriend Towasa. To his shock, Yuugure smiles gently and proposes: "Akira... please marry me." Confused by her sudden proposal, Akira agrees to travel with Yuugure, holding onto hope that somewhere in this world, the real Towasa is still alive. Along their journey, they encounter the evolving forms of love in this new era and reflect on what their bond truly means.