The firm's new CEO, Hiromitsu Tokumaru, said it would overhaul its life planner model and pay structure to curb aggressive sales pressures following the fraud scandal.
The company's minimum 90 day voluntary suspension of new sales begins on 9 February, as the insurer moves to implement governance and sales-practice reforms.
The insurer says that Kan Mabara will step down from Feb 1, after an internal probe found 100 staff profited from improper schemes affecting nearly 500 clients.