The play is based on the \”no matter the principle\” (the general legal principle that once a case has been dealt with no longer). It tells that the male protagonist was prosecuted for a murder case five years ago and was eventually found not guilty. However, he was prosecuted again for other homicides. During the refereeing process, he confessed that he was the real culprit in the homicide five years ago, but he could not accept the punishment because of the principle of \”nothing is reasonable\”. It will tell an ironic story about the law that cannot be punished even if the prisoner confesses.