The year 2077, in a world that has been largely taken over by monsters born out of mutated DNA, live some people who also mutated and became stronger. Follows a girl, Kusaka Yuuki, who's one of these mutants and is technically considered fairly powerful, who "barely defeats" a nameless, immortal boy, names him Tama, and forces him to be her servant, as they fight for a place to call home. (Source: jCafe24)

An anthology of Sword Art Online "what if" short stories by various authors and illustrators.

The archipelagic nation of the Far East, Hinoo. First Imperial princess, Izaya was the captain of the heavy aerial destroyer “Ibuki”. Naturally, all of the airship’s crew were her fan! Out of the blue came a new crew member of the ship, the protagonist Kuroto. Kuroto was the scion of the Kuronomiya house which was a subsidiary of the Imperial house and also Izaya’s childhood friend. But, he committed an unforgivable crime that led to his expulsion from the Imperial house, which was desertion to their enemy country, the United States of Gameria. “How dare you show your face!?” But Kuroto interrupted her, “I came back to save Hinoo from the monsters commanded by Gameria!” (Source: Shogakukan. Translated)

This is a tale of a prince who lost everything leaves for a journey with no guarantee of returning to his hometown safely. With hatred and revenge in his mind, he met several people that taught him about friendship...and love.

"When all colors are layered together, they become white. What I create is a 'White Kingdom' where all races come together." In the Grape Sea, where different races continue their conflicts, Toto Gattoland, the second prince of the Gattoland Kingdom ruled by the "Meow" tribe with cat ears, encounters Artemisia, a girl sent as a hostage by the antagonistic Black Rose Knights. Initially closed off, Artemisia gradually regains her smile through interactions with Toto and his companions. However, deep-seated discrimination exists between humans and the "Meow", and a cruel fate awaits Toto and Artemisia, who have started to harbor a faint love. A large army led by knights clad in armor, a fleet of sailboats filling the sea, eight swordsmen with the sacred beads of "Benevolence," "Righteousness," "Propriety," "Wisdom," "Loyalty," "Trust," "Filial Piety," and "Sibling Harmony," mechanical soldiers roaring with the miasma engine, and a flying fleet in the 500-meter limited "Floating Zone." "Whenever, wherever, even if everyone becomes an enemy, I will be your shield to protect you." The unparalleled classic fantasy chronicle begins. (Source: Shogakukan, translated)