 After overhearing Kira insult him in public, Asano strikes Kira with a sword in the corridors of Edo Castle, but succeeds only in wounding him.As attacking a Shogunate official is a grave offense, Shogun Tokugawa Tsunayoshi sentences Asano to commit seppuku and issues an edict stripping the Asano Clan of their lands and wealth.Kira, meanwhile, is not punished by the Shogun because, it is thought, of family connections.