The maid detective dedicates herself to the young lady student council president who saved her life.

If it's for the young lady, I'll offer everything I have! Emily, a girl who was once saved from execution for a crime she didn't commit by the marquis's daughter Isabella. She stands by Isabella's side like a sister—sometimes as her maid, sometimes as her best friend. When Isabella eventually enrolls in a magic academy and becomes student council president, Emily works as her hands and feet. But then, the badge that marks the student council president is stolen by someone. To save a flustered Isabella, Emily's deductive skills shine brilliantly!