Ikki Tousen

Yup, this is a great manga which has been removed from many sites because of TokYoP*p's request. They are such a jerk, huh? 11 volumes have been released so far:
Volume 01
Volume 02
Volume 03
Volume 04
Volume 05
Volume 06
Volume 07
Volume 08
Volume 09
Volume 10
Volume 11