The atmosphere of Arhut's bathroom was much narrower than usual.
When Rei openly wanted to take a bath with Arthur as one of his Maids, it made Yuuki feel a little bit challenged to see who was better at serving Arthur in the bathroom.
"My lord... Oh, do you feel more comfortable if you are called my Master?" said Rei who was now entering naughty Maid mode and always teased her Master.
"No need to force yourself like that, Rei. That doesn't suit you at all," said Arthur who was now trying to stand still after his body was stripped by Yuuki.
Before entering the bathroom, Yuuki and Rei divided the tasks to prepare warm water or strip Arthur.
Thanks to the two choices, Yuuki had the part to strip Arthur while Rei was in charge of preparing warm water for three people.
When Arthur entered the bathroom, it seemed that Rei had finished her task and teased Arthur by calling him Lord or Master.