From http://www.comic-valkyrie.com/modules/contents/kadagiden.html (please improve translation; there is more Japanese text at the page linked above, too):

With chaos at an extreme in the Song era of China, a disturbing mood drifted in the air of of the Biizumi-jo capital due to an unnatural death in the imperial family. Into this situation came a traveling woman with medical expertise, Hoya (Enran). She was ordered to solve the mystery of the unnatural death, "with an uneventful light touch"?

The girl who operates the needles stirs up marvels and nightmares! The girl physician travels with a medical miracle of an action-craving corpse, who is right out of a Chuanqi, a Chinese opera's romantic tale!

The battle concerning the forbidden power that was hidden—the "acupuncture needles"—begins!!

Original Japanese:

混沌極まる宋の時代、皇族の変死により不穏な空気漂う、微泉城都。
そこに訪れた旅の医女、櫻蘭は「指一つ触れることなく」変死の謎を解くことを命じられ――？
少女の操る“鍼”が巻き起こす奇跡と悪夢！　驚異のメディカル伝奇アクション
死体と旅する少女医師！　禁断の力を秘めた“鍼”（はり）を巡る戦いが始まる!!