Bought to Wear the Billionaire's Ring

[With Bonus Episode !] Including 4 special pages of additional story. Sammy is secretly in love with businessman Leo, her childhood friend. However, he's always surrounded by crowds of beautiful women, so there's no way he'd associate with a plain schoolteacher like her. So why the sudden proposal? When Sammy asks, Leo explains that he needs a fiancée because he wants to make it look like he's settled down so he can win custody of his niece. He chose Sammy because she and her mother are in dire straits due to her mother's illness. Besides, he could never actually fall in love with her. What will Sammy do after hearing such cruel words from her first love?