Toaru Majutsu no Index: New Testament - Volume 16, Chapter 4: A Sudden Change that Tells of Ruin - Operation_Right_Hand.

The notorious imperial court lackey and the meritorious military general were well-known for their mutual dislike, a pair of arch-enemies set in stone. Who could have foreseen the unexpected change in the winds of heaven: the general injured on the battlefield, both legs disabled, and even forced by the emperor to marry his nemesis.  

With one marriage edict, two people with mutual hostility are forced to marry and live under the same roof. Yet after these long days together, they come to the realization that this fellow is not truly devoid of any saving grace/unattainable and high out of reach.

- Description from Novelupdates

This is a world where mountains, rivers, vegetation, animals, machinery, undead, elements… can all become war beasts.

This is a world dominated by beastmasters.

The swaying star dragon bird above the nine heavens.

A lightning elf wielding a long whip in a thundercloud.

The giant whales of the vast seas are entrenched in the mountains and seas in the depths of the ocean.

The ghost of the flame shadow jumping in the unquenchable candle.

Ji Feng flipped through the Book of Starry Sky in his hand and created one myth after another in this vast world of beasts.

Embark on a path that is unique to its own creator.

- Description from novelbuddy

Blind man Chen Dashan by chance acquired the miraculous skill, Sun and Moon Technique, and not only cured his own eyes, but also...

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.