One day the protagonist's little sister and her friend come to him with a strange request.

“We're starting a 'Maid Training Club', so please help us out!”

He can't turn down his adorable sister or her friend, so he agrees to help them find a teacher to be the club advisor. The homeroom teacher gets angry and refuses, but the art teacher agrees to take on the job. But, under the condition that the protagonist becomes the club president.

Will our protagonist make it through his new club activities unscathed!?

[Translation of synopsis from Getchu.com]