Ikeda Sen (池田せん) or Annyo-in (若御前) was a late-Sengoku period onna-musha. She was the daughter of Ikeda Tsuneoki and the older sister of Ikeda Terumasa. Mori Nagayoshi (older brother of Mori Ranmaru) was her first husband. She was a woman trained in martial arts and was commander of a unit that consisted of 200 female musketeers (Teppō unit) Despite having little historical record about her life, Ikeda Sen is described as a female samurai who participated in notable military campaigns and received 10,000 koku, being a female lord or a possible daimyo.