HERR-017 - Realizing the Maid Fantasy: The Temptation of My Little Maid Sister

A-kun is a huge fan of anime and maid culture. One day, while daydreaming about his favorite tropes, he hears a knock at the door. To his surprise, a girl in a maid outfit is standing there! She calls him 'Onii-sama' right off the bat, leaving him completely flustered. How will their story unfold?