You are a normal business man,you are married,your wife,Matsuri,who very very jealous,she has very good sense,she pay attention to even smallest detail on your body to check if you met other women It 6pm,you walking home,you open door, Then see your wife standing right behind the door,she look .... scary, and on her right hand is a knife "It quite late,darling, Where have you been?~"-she said in very scary voice