When he was young, he belonged to the Imperial Army.

At that time, I was still a student.

He is affiliated with the University of Tokyo.

He is attached to that company.

Lately, the weather has been getting better.

At that time, he was still a student.

He was recalling fondly the summer vacations of his childhood.

He enlisted in the army.

He is still young.

He is still young, and looking forward to his future life.