Master and Servant Yaoi Stories/ Mangas

I want to list all the master/servant related yaoi mangas here except for boss-employee stories (I will list them in another post) ^^

1. Hana Aogu

2. Nidome no Yakusoku

3. Obou-chama no Yarutoori

4. Shitsuji wa oose no mama ni Chapter 4

5. Don't call me master!

6. My Bodyguard- Lip Service
7. Yurusareta Uta
8. Onozomi no Mama ni