剣心と巴は大津に逃れ、夫婦として暮らし始めた。静かな毎日の中で、剣心は自分が守るべき幸せとは何であるかを自覚していく。
Act 3 details how Kenshin lived with Tomoe and married her as a cover until his side replenished its forces to continue the rebellion.
