Introduction: The daughter of the Qingen Zaibatsu director was sent back to the branch in Japan because of a financial dispute, and lived as a tutor in the home of the branch manager Namiwa Asahi.
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The heroine is sober and has a correct outlook on life.
The male protagonist is fat but not greasy, and has no moral integrity.
The female supporting role is stupid and ignorant, showing off her limits.