Steam Detectives

Chapter 3
Ling Ling Hsu is in a Bubble Bath.

Chapter 13
Ling Ling Hsu is seen taking a Shower.

Episode 12
Ling Ling Hsu has multiple Steam Bath scenes and a Shower scene.

Episode 13
Narutaki has a Bath in a Clawfoot Bathtub, the afterwards Ling Ling Hsu has a Bubble Bath.