I have worked about safety missions for almost a year.
In a year, I become to understand that neatness to realize safety is a logical reasonable and systematical technology.
And I think again,
"Maybe a lot of people in the world don't know the fact and become to end their life."
Of course, I am concerned that I am going to finish my life without knowing the significance absolutely, if I do such a business.
I can understand that "there seems to be no problem without knowing it"
(To be continued)