Manga by author Sigma

Four years have passed since the original heroine ended her life as a maid. A handsome man came to visit. That too, a man who looks like the lady I used to serve. "I'm here to keep my word, Blair. You said you'd be with me forever."You don't say Miss?" At the moment, the man's red eyes turned round. Just around the corner, he tilted his head and kissed his hair. And whispered. In a very sweet and beautiful voice, "Now call me Master." yes?

.On ninth year since I became a supporting character the lady I once served came to me, but as a young master.