Mai joins Tokyo Daiichi Bank's internal inspection department, where she reunites with a former colleague. They head out for their first assignment.

Letters of protest from women who paid large sums to a suspicious marriage agency financed by the Aoyama Branch prompt Mai and Soma to investigate.

A delighted Mai looks forward to helping with bank teller duties at the Kamata Branch until she realizes how cruelly the branch manager treats others.

A young, promising bank employee vanishes without explanation. As Mai and Soma look into the disappearance, the man's mother bursts into the bank.

A bored Mai jumps at the chance to visit the branch where she used to work, but a startling bank inspection gets underway just as she and Soma arrive.

After a story alleging sexual harassment from a branch manager appears in a weekly magazine, Mai and Soma are tasked with finding the accuser.

After a friend plays matchmaker and introduces Mai to a handsome restaurant owner, one of his employees approaches Mai with concerns about bribery.

An elderly friend sets Mai up with a charming banker. But Mai grows suspicious of his intentions toward her friend when his bank files for bankruptcy.

As the bank closes in on a long-awaited business opportunity with the powerful Itami Group, Mai clashes with the haughty son of the group’s chairman.