Kokoro no Kagi wo Mitsukete*
Complete | cj michalski | 2000 released
Done kazuto is the illegitimate son of rich house, some day after his parents die, he just got knew that he has grandfather and got adopted by his grandpa, and long story short his grandpa died too, and his step brother trying to steal I key to the save box of his inheritance of his grandpa, and then kazuto fall in love with the butler toudo-san and his step brother kiyoto got anemia plastic and need bone marrow transplant and kazuto is the one is do it
My Fair Footman