He deeply reflected on his past actions and began to walk the path of repentance.

His conduct is always fair.

He walks in the park every day.

We deeply reconsider this failure and strive not to make the same mistake again.

I deeply regret my past actions.

My past has made me stronger.

I decided to start a new project.

He came to Japan for the first time.

Since I started studying Japanese, I have been able to understand more about Japanese culture.

He started playing the piano.