[On top of that, you didn't even apologize, and you didn't thank your older sister for covering for you.] [Thanking your sister should be natural shouldn't it? Say it so she can hear it!] (Natural as in something that should be done, or expected of her) *peko peko* (bow, bow. When japanese people are VERY sorry about something, they will get on their knees and bow to the person they are saying it to. This is considered a very humbling act and can be taken as the ultimate way of saying "I'm Sorry for -insert reason-". This alone may change the receiving end's mind in forgiving them. Of course, it doesn't always work, and when it doesn't, receiving end is usually a jerk, or VEEEERY upset.)