Romance Godankatsuyou
ろまんす五段活用
Mugiko was raised by middle-class parents but always longed to become an heiress. Her dream unexpectedly comes true when her biological grandfather, the leader of a prestigious family, locates her after years of searching. As she begins her new life, Mugiko finds the reality of being an heiress different from her expectations. Her grandfather arranges for her to become engaged to Yoshiki, his former heir. Though calm and composed, Yoshiki does not recognize Mugiko as the legitimate heiress.