界和信用银行在日本是数一数二的大银行,理事长岩冈被指控挪用公款,也因而使得银二的公司一度周转不灵,鞍马天狗是指控理事长的幕后匿名者。就在岩冈出面招开记者会后离去时,署名鞍马天狗的人出现了....Kasuga's husband gets arrested for a murder of his beloved protege. She and her family investigate and find out he was trapped by greedy Nagoshi, the boss of their rival yakuza family. She has to make a decision to revenge Nagoshi.