This training center with many students who were sympathetic to Tosa Dappan Roshi (masterless samurai who left the Tosa domain) or Choshu was closed down in 1865, the following year, because it was deemed to have a strong anti-Bakufu hue in spite of an organ of the Bakufu.
さらに土佐脱藩浪士や長州に同情的な意見を持つ生徒が多かったこの操練所は、幕府の機関でありながら反幕府的な色合いが濃いとして翌年1865年に閉鎖された。