Sword Art Online Alternative: Gun Gale Online

After losing his home to a powerful enemy, a hot-tempered fighter trains under his zealous grandfather while awaiting his chance for revenge.

To gain the skills he needs to surpass his powerful father, Baki enters Arizona State Prison to take on the notorious inmate known as Mr. Unchained.

Mochizuki General Hospital boasts some of the most well-trained nurses in town. But though these ladies spend much of their day battling sickness, their after-hours are spent fighting a very different sort of disease... Under the leadership of the hospital chairman, a handful of staff members and local teenagers form a group of mercenary assassins, targeting the "cancers" of society and excising those individuals before their wickedness spreads.

Hakuoro has lost his memory after succumbing to serious injuries. But thanks to an elderly woman and her granddaughter Eruruu, he is nursed back to health. His face is covered by a strange irremovable mask and he occasionally sees beastly visions. Eruruu now cares for him as he becomes accustomed to the village and its inhabitants, who all bear strange ears (the women also have tails). Though these people venerate the forces of nature, desecration of an altar forces them to take drastic measures to preserve their lives from the wrath of Mutikapa-sama, guardian of the forest.