Your Wish is My Command, Master (chapter)

Summary
When Himeko shows off that she can bend her hands backwards, Bossun tries to do the same to prove to Himeko that this is not a special ability. Himeko tries to help Bossun, but Bossun ends up spraining his hand. Bossun makes Himeko sign a contract to serve as his maid until he recovers. Throughout the day, Himeko messes her orders making Bossun mad. She gets payback at Bossun when she finds out that Bossun's hand is not even injured.