An exceptional marksman and hopeless playboy, private eye Ryo Saeba reluctantly forms an alliance with his late partner's sister to investigate his death.

Hana, a high school student who lost her parents in an accident, does not fit in at school and cannot find any reason to live. Suddenly one day, a man claiming to be from a special government organization visits her and asks her to tell him about a dream she had. Hana is confused and has no idea what is happening, but that night she has a strange dream.

In 15th century Kyoto before the Onin War, outlaw leader Hyoe uses his deadly swordsmanship to spearhead a rebellion against the corrupt Shogunate and its army, commanded by his former friend and now enemy Doken.