Today was the first day of work.
Actually, I went to work on the 5th. But there were not so many
colleagus on that day. So, I felt today was the first day.

I went to one of our client with one of my boss to discuss what
will we do in this fiscal term. There were many vague points,
but we dicided that we’ll do feasibility study of implementation,
and our client will make senarios.