Ayukawa Wakaba is full of ambition. She lands a job at an international law firm, but to her disappointment, the first prestigious assignment that is given to her is to babysit the boss' 5 year old daughter, Hinata.

Wakaba (Yui Aragaki) dreams of becoming an international lawyer making 10 billion Yen annually. Wakaba then gets a job at Samezima Sakuragawa law firm. Wakaba's boss then unexpectedly assigns her to take care of her 5-year-old daughter Hatana. Wakaba, reluctant at first, accepts after learning it is for only three months. Wakaba then meets a man named Shota (Ryo Nishikido) again. She first met him in the subway. Wakaba mistakes Shota for a pervert. Nevertheless, love is soon to bloom between the two people .—AsianWiki