a romantic story about a girl that moved into a rich household with her mother as a maid during the summer holidays, on her way there she met a boy which is the soon to be head of the rich company named Mamoru and another guy named Keigo which is also a servant working there for the time being. they became friends straight away but only Mamoru and Keigo know about a heart of diamond which is currently planted inside the heroine's (himeno's) body and at that time they were only small so Himeno didn't know about the knight's guide and that Mamoru and Keigo are her knight in shining armor. After a few years she attends a school and find that Keigo also attends the same school, Mamoru attends a school in London and that he has a sister that is in the same grade as her but also loves Keigo. im a little worried about how they tend on ending the story because I feel sorry for Mamoru because he loves Himeno just as might as Keigo and yet he doesn't even have a chance at winning her love. Though the story is going rather well but I have to say this isn't my best manga I read yet.
Heart no Diamond