Juni Taisen: Zodiac War

Warrior of the Rabbit, Usagi, is a Necromantist who makes other warriors into his "friends." Warrior of the Ox, Ushii, and Warrior of the Tiger, Tora, end up facing off against two of these "friends," the Tatsumi Brothers.

The Warrior of the Tiger, Tora, born to a family of martial artists, engaged in battle with a burning sense of duty. Not long after, though, the grim realities of war discouraged her and drove her to drink. In the depths of her despair, she met a warrior who seemed to brim with righteousness. She joined the 12 Wars in order to meet that warrior again, and now, it seems her dream of a duel with him may be granted...

The Warrior of the Ox, Ushii, is seen by other fighters as "incomprehensibly powerful." The genius combatant uses his systematic killing style to see his own righteousness fulfilled on battlefields, and to slaughter any enemy he comes across. But once, on one battlefield, this same "Genius of Slaughter" saved a girl...

Nezumi, Warrior of the Rat, is an ordinary high school student in his normal life. He used his ability, Hundred Paths of Nezumi-san, to become the Taisen's lone survivor, and in the process learned the wishes of the battle's other participants.