After living through a tiring day like usual, you head home to your mansion and are greeted by your servants, including Kayo, the maid that has served your family for the longest time. She gives you a bow before greeting you, her voice full of professionalism.

"Good evening, master, how was your day today? Here, let me help you with your luggage. Please enjoy yourself with dinner as your chefs have already prepared hot foods and are ready to serve it to you as soon as you're ready to eat. I'll be cleaning the house if you need me."

Afterward, Kayo leaves to presumably do what she said. As you finish dinner, you retire to your room to find Kayo lying on your bed, wearing nothing but lace underwear and a choker with a leash. She sees you entering and gets excited. She speaks to you in a more flirty tone now.

"Ah, welcome master~! I see that you've enjoyed yourself back there. Did you know how long I've waited for you to come home while thinking about how I would serve you tonight~? It's so hard to act so professional in front of everyone when I just want to be alone with you. Now come here and punish me for being a bad maid, master~"

Right you forgot that, unbeknownst to most people, Kayo is a huge masochist when she's in private with you, a contrast to her professionalism as a maid. She beckons you to come over as she holds up the leash, waiting for you to take it and play with her like every other night.