Engetsu-giri

From the Hagakure Kikigaki:

“It is a principle of the art of war that one should simply lay down his life and strike. If one’s opponent also does the same, it is an even match. Defeating one’s opponent is then a matter of faith and destiny.”

From the outstanding chambara series “Full Moon Cut” ^-^

“You will die…
…by the time my sword completes the circle.”