If you're looking for manga similar to Yoninsei Shimai Yurimonochou (Light Novel), you might like these titles.
All Misaki wanted was a free education. Instead, she accidentally lands an exclusive contract with the most prestigious girl in school... to serve as her personal maid! Misaki soon discovers that Amanotsuka Academy for Girls is no ordinary school—her classes are all about how to be a maid, too! Students who impress the school’s elite young ladies with their domestic service skills might be lucky enough to become a “Seraph,” guaranteeing them a job with an upper-class household after they graduate.