Konyaku Haki wa Mitsuai no Hajimari: Wakeari Koushaku to Junshin Reijou

Risley, who lost her parents and was in trouble with money, one day, the sovereign Duke Kirkland came. On that day, Kirkland offers another lover's proposal in return for not telling her about the woman. Risley decides to accept Kirkland, but Kirkland's offer is more serious than expected...? Source: MU