This work is a short story published by AkutagawaRyunosuke in 1917. Akutagawa describes Ouisikuranosuke`s inner world, who is the main character in the story and central figure in the affair, against the backdrop of Ako incidenthappend in the Edo era. Kuranosuke is captivated by inexpressible desolation during talking with his partisans involved in the affair. That is from that unborn generation will talk about him and his partisans as well as his avenging his master. In other words, his desolation is from people`s egoism who don`t know his feeling. Akutagawa disappoints man`s innate phase that man is fooled with and cannot free from egoism and then delivers the feeling as inexpressible desolation.