The older sister Akatsuki was complete on 30 November 1932.

Ikazuchi was complete on 22 October 1931.

Inazuma who was started building at same time with Ikazuchi was complete after her at 15 November 1932, so she count as little sister.

But Hibiki have some problem during construction so she is the last, complete at 31 March 1933.

And now, 6th Destroyer Division complete.