Perhaps if they planted evergreens...?

shes already got part timers, just franchise, teach others your method, maybe invest in spray paint technology to speed up the production, and boom, multi million dollar company.

Zekana said:

shes already got part timers, just franchise, teach others your method, maybe invest in spray paint technology to speed up the production, and boom, multi million dollar company.

She just has to wait until spray paint is forgotten by the outside. Gambatte, Shizuha!

Zekana said:

shes already got part timers, just franchise, teach others your method, maybe invest in spray paint technology to speed up the production, and boom, multi million dollar company.

She's doing it by hands. So... the method is probably not that hard or big of a secret to begin with.
Thus people will copy her and make cheap knockoffs.
Leading to a multi million dollar company being broke.

Either way, her suffering doesn't end.