Not a while ago, I quit, what many would call, a dream job in Japan. But there was still something missing in my life. Do not think for a moment, I am ungrateful to my employers, on the contrary, I was lucky to work with them. But it was time to move on. In the last e-mail they sent, I was asked if I’ll ever come back. So I replied as honestly as I could, I told them that they’d find someone else, better than me, because they deserve better. But I also told them they could always call me and count on me. And yes, we could still be friends. I will always be there for them. 
I know comparing quitting a job with breaking with a boyfriend, might sound disrespectful for some people, but in Japan, where work ethics are still very traditional, getting a job is a life-time-commitment. In other words, in Japan, you just don’t get a job, you marry your job. You read that correctly.

You marry your job. Your job is your priority number one. And you immediate supervisor becomes your mother/father, to whom you’re obliged to obey. No arguments. Your boss’s word is final. In a traditional Japanese company, there is no room for “I.” What matters the most is “We,” the group, even to the cost of your well-being. 
This is an actual cultural fact. When you get a job in these islands, you stay with the same company for life. You give them your life, and in return, the company looks after you. And although this has started changing during the last two decades, I was fortunate enough to experience this unbreakable bond, that still exists, in the Japanese Business world.
In other words, quitting was not easy. But, I was lucky enough to see, to live and, to experience this cultural phenomenon in order to transmit to all of you.