Chicago Fire stars are back in the Windy City filming season 10, and Hanako Greensmith has given fans a fun behind-the-scenes moment between herself and Kara Killmer.

Hanako and Kara play Violet Mikami and Sylvie Brett respectively, the paramedics at Firehouse 51, and the actress took to social media to share a picture of the pair back in their ambulance rig.