Taking over Nippon Kangyo and Noko's operation, DKB was the sole trustee of Takarakuji lottery, and was the only bank to have branches in every prefecture in Japan.

These practices backfired however, only causing difficulty among the employees similar to Teikoku Bank's case.

Even worse, DKB financed not only high-risk companies but also yakuza, in order to invest in capital resources more easily than its competitors.

A raid by Tokyo prosecutors in 1997 impeaching of the loans to sōkaiya laid DKB open to public criticism.

It remains active in the Tokyo region with over 45,000 members, and uses a modified version of the Dai-Ichi Kangyo Bank branding.