Cause
Your big mouth is the cause of all your problems.
Imagine all the dumb things you blabber about with your mouth open big and wide. Saying things you shouldn't say... causing drama and stuff. Shame on you.
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None
Your big mouth causes all of your friends and family to move to an inn (いん) so they don't have to live near you and hear you talk anymore.
Who knew you could cause people to live in an inn instead of their own homes with your big mouth...