In the first part of the corporate challenge, an ikebana contest, ZAIA Enterprise's human representative easily defeats his HumaGear opponent. However, Gai learns he cheated and calls for a rematch against a reset version of said HumaGear. Following this, the ikebana artist is approached by a mysterious figure and transformed into a Raider, a new type of monster that uses Progrise Keys.

The second stage of the Hiden vs. ZAIA corporate challenge continues as the latter's human representative resorts to underhanded tactics to defeat his HumaGear opponent, with the winner being ultimately decided by whoever can sell houses to millionaires on a budget. Meanwhile, Aruto begins to question himself after Gai claims a good president is only as good as the profits they make.