DESCRIPTION
There is a summary zip at the bottom of the page.
This is Rokka Asahi, aka Lock, from BanG Dream!.
As part of the public bathhouse's Customer Appreciation Week project, Lock is a service that washes customers' backs.
I have given form to an impossible but nice thing to have!
Incidentally, the last panel shows a situation where the shampoo was empty and the customer asked Lock for a replacement shampoo.