Wow! Looks like Cream Lemon: Pop Chaser is not available on any streaming services in the world!

Arriving at the quiet town of Neo Cansas, Rio lodges herself at the Sailor Uniform Saloon, the only bar/hotel around. Mai, a waitress who works at the saloon, asks Rio to deal with a gang that is terrorizing town. Rio offers her help and Mai is very thankful for that.