Hanasaki Mai ga Damattenai Season 2

Hanasaki Mai and Soma Kenwork for Tokyo Daiichi Bank, and their job is to fix problems that arise at various local bank branches. Matsuki Keisuke is an enthusiastic and honest bank teller. While working with Hanasaki Mai, he develops feelings for Hanasaki Mai. Meanwhile, insensitive Hanasaki Mai is oblivious to Keisuke's feelings towards her.
(Source: AsianWiki)
~~ Adapted from the novels "Fushoji" (不祥事) and "Ginko Somu Tokumei" (銀行総務特命) by Ikeido Jun (池井戸潤).