The defendant's appeal is dismissed.

1. Summary of grounds for appeal;

A. misunderstanding of facts or misunderstanding of legal principles 1) The Defendant used the electric measuring instruments jointly with the victim C residing in the side building and paid the victim C the electric measuring instruments for several years. The electricity user fee was higher than normal one, and the Korea Electric Power Corporation came to know that C was paid excessive electricity user fee by deceiving the victim C, and the Defendant inflicted an injury on the victim C. Thus, the Defendant’s act of injury to the victim G constitutes a justifiable act that does not violate the social rules stipulated under Article 20 of the Criminal Act, and its illegality is dismissed. 2) When the Defendant became aware of the fact at the time of the victim’s injury to the victim C, the victim, the husband of the victim C, was found to have become aware of the fact at the time of the victim’s injury to the victim C, and the Defendant was aware of the victim’s her neck and the Defendant’s neck, etc., and the Defendant committed an act of self-defense against the victim’s body, which constitutes an unlawful act of self-defense as stipulated in Article 21 of the Criminal Act.

B. The sentence (one million won of fine) imposed by the lower court is too unreasonable.

2. Determination

A. The phrase “act that does not violate social rules” as stipulated in Article 20 of the Criminal Act with respect to the assertion of mistake of facts or misapprehension of legal principles refers to an act that may be acceptable in light of the overall spirit of legal order or the social ethics or social norms, such as the legitimacy of the motive or purpose of the act, the reasonableness of the means or method of the act, the balance of the protected interests and the benefit of infringement, urgency, and any other means or method other than the act.