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From mangaupdates: Born into a wealthy family, she lost her mother at a young age. She is Riona, a girl who was raised by a single father. At the girls' school she attends, she has many friends and a special partner of hers, She lives feeling a little lonely that her busy father has just left her house. One day, her father bought a robot that she said was her "housemaid" She witnessed the act of "Forty"...? A girl who wants her affection and a robot who doesn't know her feelings. A dramatic story of gems!
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