Loveless - Kouga, Yun

Aoyagi Ritsuka is one troubled 6th grader. Two years ago, he mysteriously lost his memory and developed an alternate personality. His mother constantly berates (and occasionally beats) him, asking what happened to the "real" Ritsuka, and his only defender and friend, his older brother Seimei, was recently killed.

Suddenly, Seimei's apparent "friend," Soubi, appears. Soubi tells him that Ritsuka's true name is "Loveless," and that Soubi was assigned by Seimei to take care of Ritsuka and protect him. Ritsuka soon gets sucked into a bizzare underground society where teams of people, a "Fighter Unit," and a "Sacrifice," battle using elaborate and beautifully-phrased spells.

He seeks both acceptance of himself, and the answer to the mystery of who killed his brother and why.

(Source: TokyoPop)

Loveless was published in English by Tokyopop for 8 volumes from February 7, 2006 to September 1, 2008 until becoming defunct; VIZ Media later gained rights to the series and began publishing since September 11, 2012. The series was also published in Polish by Studio JG from July 11, 2014 to June 9, 2016.