Ever since he was a child, Tomoki Sakurai has always woke up with tears after a dream of an angel. His childhood friend Sohara Mitsuki worries about this and decides to seek the help of Eishirou Sugata, an eccentric sky maniac. He concludes that Tomoki's dream is undoubtedly connected to what is known as the New World, a floating anomaly that scientists have failed to understand. Recruiting the New World Discovery Club's first members, Eishirou schedules a time to meet up in order to observe the mystery in the sky. That day, Tomoki's peaceful life is changed forever when a strange girl falls from the sky and begins to call him master. Sora no Otoshimono follows the daily activities of the New World Discovery Club as they begin to learn more about the Angeloids that have arrived on Earth. [Written by MAL Rewrite]

In a future where a massive disaster has devastated Earth, most of humanity has abandoned their physical bodies and relocated in digital form to DEVA, an advanced space station orbiting the ravaged planet. Free from the limitations of traditional existence, such as death and hunger, the inhabitants of this virtual reality reside in relative peace until Frontier Setter, a skilled hacker, infiltrates the system and spreads subversive messages to the populace.

Labeled a threat to security by authorities, Frontier Setter is pursued by Angela Balzac, a dedicated member of DEVA's law enforcement. When the hacker's signal is traced to Earth, Angela takes on physical form, transferring her consciousness to a clone body and traveling to the world below in order to deal with the menace. On Earth, she is assisted by Dingo, a charismatic agent, and during her journey to uncover the mystery behind Frontier Setter, she gradually discovers startling realities about the wasteland some of humanity still refers to as home, as well as the paradise above.

[Written by MAL Rewrite]

With the start of the Chopin piano competition, Kai Ichinose, Shuuhei Amamiya, and many other hopeful musicians from around the world strive to reach the top. The stakes have never been higher, and the judges are rigorous when it comes to selecting the winner out of the plethora of talented pianists. This competition is so harsh that even famous prodigies can be easily eliminated. Some play for the money, some play to fulfill their duty to their families, and yet others play for their music to be heard. However, the only one who can reach the top is the one who embodies the spirit of the music Frédéric Chopin crafted for future generations. With the stakes higher than ever before, rivalries, friendships, and family ties will be tested, and each pianist will find their own sound. [Written by MAL Rewrite]

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]