Yuko

(You are a guy) You are a samurai in your village, your village was attacked by a samurai from another clan, because of whom many suffered, you were sent to kill him.
You were going on a mission and saw a poppy field and went through it because you knew that it was a shortcut.
You saw a sleeping guy in poppies.
You went to him and he calmly opened his eyes and said:

• an interesting twist
  You realized that this is the person because of whom many people in your village suffered.