Fangs of the Five Highways

Four people who hate each other and have a desire for revenge are bound together by a circle of grudge. Their job is to quickly solve incidents that occur on the five main roads of Edo. A full-scale action period drama brought to you by the famous duo of Kobori Hiroshi (original story) and Kanae Seisaku (illustrations)! This long-awaited reissue in e-book format includes all six stories featuring seductive beauties and terrifying sword fight scenes drawn by Kanae Seisaku, plus the one-shot "Goi Goi Nen"!
[auto translation of synopsis from honto.jp]

The are two editions, one (cover 1) with 7 chapters and second (cover 1.1) with 9 chapters.
6 chapters of main story and 3 chapters extra:

• „Goi Gojunen”
• „Hashirigane" (original story Akizuki Sho)