赤い羊の刻印 [Akai Hitsuji no Kokuin]

A brief, two-issue series from Hakusensha, Akai Hitsuji no Kokuin (The Red Sheep's Mark) debuted in 1994 and has continued as an ongoing work. Its premise and creators remain closely held, but its long, sporadic publication history has given it a quiet mystique among collectors of the publisher's more esoteric titles.