What is the theme in Chushingura, the Treasury of Loyal Retainers: A Puppet Play by Takeda Izumo?

Yuranosuke's story is one of loyalty. He is the idealized samurai archetype, his sense of duty outlasting even the life of his lord. In essence, this means that Yuranosuke's loyalty is in no way compelled by external forces. There are no laws governing his behavior, no promised rewards or threatened punishments. Yuranosuke acts purely of his own accord, driven by his own sense of justice and love for his lord. In this respect, Yuranosuke is never truly a ronin, as he forever serves a master.