因为15岁春天的一见钟情，小动爽太（松本润 饰）对美丽的学姐纱绘子（石原里美 饰）便展开了长达一整个高中时代的苦恋，这份不曾改变的心意终于在圣诞节前夕有了结果。不温不火地交往了几个月后，爽太被纱绘子轻易甩掉，他以为自己惨遭“劈腿”，谁料纱绘子从不曾承认二人的恋情。
为了 挽回深爱的纱绘子 ，毕业于糕点学校的爽太远赴巴黎，到纱绘子最爱的巧克力作坊“幸福作坊”学习，势要成为巧克力职人。六年后爽太功成名就，带着光环回国开店，成为相当瞩目的“巧克力王子”。这一切，其实都是为了喜爱巧克力的纱绘子。终于，心中的女神纱绘子出现在爽太的店里，这一次，她会回心转意吗……
本剧根据水城雪可奈的同名漫画改编。

Hiroto Miyama is a poor lawyer who takes on criminal cases, but unable to make money. He pursues the truth for the 0.1% out of Japan's 99.9% conviction rate. One day, Hiroto is scouted by Haruhiko Madarame. Haruhiko Madarame is the head of Madarame Law Firm which is one of the biggest law firms among the 4 big law firms. Hiroto Miyama begins to work with Atsuhiro Sada. Atsuhiro Sada is a lawyer specializing in civil cases and makes lots of money for the law firm. He doesn't have any interest in criminal cases which can not make money.