"A. C. Japan" seems to be some social organization of "General Advertisements". When Japanese society has serious situation, some cheerful commercials are suppressed and replaced by "AC Japan commercial".
In March of 2011, most of all commercials are replaced by "AC Japan commercials". These days, we have "AC Japan Commercials" very often because of ABE accident.
In this movie, They have these conversation.
-- An old lady is straggling to pay money in a convenience store.
Rapper: Hey Old lady, don't be hurry. You can do everything in your time. Be yourself.
Old Lady: Thank you for your un-expected gentle words. I miss-understood you. You are so gentle. I should not judge a person by appearance.
Rapper: Every one has different character.
Old Lady: I am me. You are you.
Both: Respect each other !
shop staff: Don't fight, Just respect !