I have the day off from work today.
So, I went on a mini-trip to find the Ruby advertisement featuring the "KIYOKO HATA" dress model, which is on display until today! <img src="https://storage.googleapis.com/oshinoko-5xfoy/oshinoko-5xfoy/admin-console-images/1733828333235_1799eaca-2ce0-4df0-8953-8c165b2fd2c7.png" alt="" height="28" width="28" fetchpriority="high" class="mx-2 mt-2 inline-block align-bottom">
There are two locations where the advertisements are displayed this time as well.

Ruby's dress advertisement featuring the model [HKT☆Ruby Report!] | はくと's post