The Black Beast’s Useless Concubine - Chapter 1000 - : My wife is so amazing!

He Lang died by his own hands for the sake of his imperial younger brother’s ambition, whom he loved. He was offered to be reborn in exchange for giving up his past romantic feelings. Reborn without the burden of his romantic feelings, he brings with him a manual to new worlds. He wholeheartedly followed the instructions of the manual to complete the tasks, not knowing that the originally slag gong was blackening…
He pleaded to his affectionate Emperor brother to release him, he pleaded to the paranoid prisoner next door, but until the end he remained baffled.
In the end, he discovered that the full name of the manual was – “Slag Shou Cultivating Manual”
Σ (っ ° ° °;) っ!

- Description from Novelupdates

Based on the popular Vocaloid song .

Rin, a young angel (presumed female, but angels don’t have clear genders) falls in love with a young human girl, Miku. However, their love is considered taboo, and so, Rin makes a deal with the devil to be reborn as the human boy, Len, in order to be with Miku. However, their happiness together is short-lived, and even that soon ends in tragedy.

Side story of Kyoukai Senjou no Horizon bundled with the first press release of the 1st, 3rd, 5th and 7th Blu-ray volumes of both seasons of anime.

This side story follows Asama, Kimi and Mitotsudaira aboard Musashi one year before the beginning of the main story, as Asama is considering to create a music band together with her two friends for the next festival in Aki, a territory under the governance of K.P.A. Italia.

The status of a wizard is transcendent in all continents and in the universal plane.

Mysterious, wise, cruel and bloodthirsty are synonymous with wizards. But what does a real wizard look like?

After coming into contact with the world of wizards, Angel came to the conclusion:

Wizards are a group of people who illuminate themselves with intellect-driven ideas, but are in a dialectical world with a materialistic attitude.

In other words, this is a group of alternative scientists who walk alone in a rigorous manner in the pursuit of understanding reality.

…..

Multiple worlds, boundless overlap. Under the guidance of intelligent creatures, they have walked out of their respective paths of civilization.

Among them, the wizard world, with its unique cultivation of civilization, runs through the endless plane.

Even if the wizard world is so strong, the reality of the universe, is that the mysteries of the dimension are still unbreakable.

Until, a multiverse traveler, visited this side of the world. (The traveler is not the protagonist, the traveler is not the protagonist , the traveler is not the protagonist, things that are important are said three times!)

- Description from Novelupdates